1. What is the value of 4(9 + y) if y = 0.1? A. 36.4 B. 40 C. 3.6 D. 36.1 Hint 2. Evaluate c + 5 if c = 3. A. 5 B. c + 3 C. 3 D. 8 Hint 3. Evaluate if a = 9, b = 6 and c = 3. A. 15 B. 9 C. 5 D. 11 Hint 4. Write 24 as a product. A. 2 · 2 · 2 · 2 B. 2 + 2 + 2 + 2 C. 4 · 4 D. 4 + 4 Hint 5. Solve 3x = 18. A. 15 B. 6 C. 7 D. 21 Hint 6. 2,561 mm = ______m A. 0.2561 B. 2.561 C. 2,561,000 D. 25.61 Hint 7. Write 120,000,000 in scientific notation. A. 1.2×108 B. 0.12×109 C. 1.2×109 D. 12×107 Hint 8. Evaluate 42 – 10 A. 6 B. 2 C. 26 D. 16 Hint 9. Evaluate x2 + 2xy + y2 if = 4 and y = 7. A. 86 B. 121 C. 78 D. 65 Hint 10. Solve 5x = 55. A. 9 B. 5 C. 11 D. 12 Hint 11. 523 m = ______ km A. 0.523 B. 0.0523 C. 5.23 D. 523,000 Hint 12. The speed of light in a vacuum is exactly 299,792,458 meters per second. Write this number in scientific notation with the factor rounded to the hundredths place. A. 2.99 × 1010 B. 3.00 × 108 C. 2.99 × 109 D. 3.00 × 109 Hint 13. Write 63 as a product of the same factor. A. 6 · 6 · 6 B. 3 · 3 · 3 C. 3 · 3 · 3 · 3 · 3 · 3 D. 6 · 6 · 6 · 6 · 6 · 6 Hint 14. Evaluate 15. A. 1 B. 6 C. 5 D. 15 Hint 15. The table shows how much time Eva spent in a music chat room on the Internet during the week. Which expression cannot be used to find the total number of hours she spent in the chat room? A. 1.5 + 1.5 + 1.5 + 1 + 1 + 2 B. 3(1.5) + 2(1) + 2 C. 3 × 1.5 + 2 × 1 + 2 D. 5(1.5 + 1) + 2 Hint 16. Which expression represents the Identity Property of Multiplication? A. 8 + 0 = 8 B. j × 1 = j C. h × 0 = 0 D. 4 × 1 = 1 × 4 Hint 17. Describe and identify the pattern in the sequence.6, 7, 9, 12, 16, … A. Add 1 to the first term, add 2 to the second term, and so on; neither arithmetic nor geometric B. +1; arithmetic C. Add 2 to the first term, add 4 to the second term, and so on; neither arithmetic nor geometric D. ×2; geometric Hint 18. Write 9.01 × 108 in standard form. A. 90,100,000 B. 901,000,000 C. 9,010,000 D. 9,010,000,000 Hint 19. Michigan’s population is almost 10,000,000 people. Texas’ population is twice that of Michigan. About how many people live in Texas? A. 2.0 × 109 B. 2.0 × 107 C. 2.0 × 106 D. 2.0 × 108 Hint 20. The Mojave Desert in southern California is 15,000 square miles. The Sahara Desert in northern Africa is about 233 times larger than the Mojave Desert. How big is the Sahara Desert? A. 3.5 × 105 sq mi B. 3.5 × 106 sq mi C. 3.5 × 103 sq mi D. 3.5 × 104 sq mi Hint