1. Write 2,564,000 in scientific notation. A. 2.564×106 B. 2.564×105 C. 25.64×105 D. 2,564×103 Hint 2. Find the value of r in the following equation. 2 + 6r = 3r - 1 A. 6 B. C. 2 D. -1 Hint 3. What is the volume of a shoebox that measures 14 inches by 8 inches by 8 inches? A. 176 in3 B. 224 in3 C. 112 in3 D. 896 in3 Hint 4. Complete the flowchart by filling in the ovals. A. B. C. D. Hint 5. George and a group of his friends are going to a baseball game. Tickets cost \$12 apiece and a program costs \$5. If George goes with 5 friends, write an expression for the total amount that George and his friends spent at the game. Use p for the number of programs bought. A. 12p+ 5 B. 12p + 72 C. 5p + 72 D. 5p + 12 Hint 6. Find an explanation for the expression s + 3. A. If s is the number of sunny days, s + 3 is the number of sunny days in March, the third month of the year. B. If s is the number of sunny days, s + 3 is the number of sunny days 3 years ago. C. If s is the number of students in the classroom, s + 3 is the number of students after 3 students leave the class. D. If s is the number of students in the classroom, s + 3 is the number of students after 3 new students join the class. Hint 7. Factor the expression.24x2 – 54x A. 6x(4x – 9) B. 6x(4x – 9x) C. 6x2 (4x – 9) D. 6(4x2 – 9x) Hint 8. How many blocks are used in Stages 1–3? A. 9, 15, 21 B. 3, 7, 10 C. 3, 6, 10 D. 4, 7, 10 Hint 9. Describe this pattern. A. ''add 1'' pattern B. cube pattern C. square pattern D. doubling pattern Hint 10. Which top-count view represents the top engineering view shown below? A. B. C. D. Hint 11. Which expression describes this pattern of numbers: 4, 16, 64, 256, 1,024. A. x4 B. 4 + x C. 4x D. 4x Hint 12. The graph of the Celsius-Kelvin temperature conversion formula, K = C + 273, is shown below. For which temperatures are the Kelvin temperatures positive and the Celsius temperatures negative? A. temperatures greater than 273 K B. temperatures between 0°C and 100°C C. temperatures greater than –100°C D. temperatures between 0 K and 273 K Hint 13. Tamika earns \$9 per hour working at the library. She normally works 15 hours per week. How much does she earn in a typical week? A. \$135 B. \$24 C. \$81 D. \$225 Hint 14. Find the relationship that is not proportional. A. A = r2, where A is the area of a circle and r is the radius of the circle. B. p = 4s, where p is the perimeter of a square and s is the length of one side of the square. C. m = 10c, where m is the number of millimeters and c is the number of centimeters. D. S = 180n – 360, where S is the sum of the interior angles in a polygon and n is the number of sides of the polygon. Hint 15. Suppose Bruno walks 2.5 meters per second across a room that is 20 meters wide. He starts at the left wall and moves across the room to the right wall. Find the table that represents the relationship between distance from the right wall and time. A. B. C. D. Hint 16. In a bag of 53 cherry and watermelon-flavored candies, there are 19 more watermelon than cherry candies. How many cherry candies are there? A. 34 B. 36 C. 17 D. 19 Hint 17. Find the balance puzzle that matches the equation.3n + 6 = 4n + 9 A. B. C. D. Hint 18. Diana needed to borrow some money from her friends Zach and Kenyon. She told them that if it took more than 2 days to pay them back, she would triple the amount they borrowed her. Diana got a check for \$60 and was able to pay them back, but it was three days later. Which expression represents the amount of money Diana had after paying her friends back? A. 60 – (x + y) B. 60 – 3(x + y) C. 60 – 3x + y D. 60 – x + y Hint 19. Find the linear equation. A. y = 5.2(x – 6) – 2(4 – 3x) B. y = x + x2 – 7x + 4.9 C. y = 7x (x– 1) + 4(9.6 –x) D. y = 10(x – 8) + 3x2 Hint 20. Name a similarity and a difference among the three graphs below.7x + y + 8 = 0–7x + y + 8 = 0–3x – y – 8 = 0 A. None of the graphs have the same slope nor the same y-intercept. B. The graphs have the same slope and y-intercept. C. The graphs have the same slope, but different y-intercepts. D. The graphs have the same y-intercept, but different slopes. Hint