1. Find the product 4 · 6 · 5 mentally. A. 120 B. 20 C. 80 D. 100 Hint 2. Write an inequality for the phrase ''two more than three times a number is at most 53.'' A. 3m + 2 53 B. 2m + 3 53 C. 2m + 3 53 D. 3m + 2 53 Hint 3. Which symbol makes the expression –15 ___ –14 true? A. > B. = C. < D. × Hint 4. Solve the equation 6 + (–2) + (–8) = r. A. 2 B. –16 C. –4 D. 0 Hint 5. Solve the formula I = prt, if p = 525, r = 0.04, and t = 2. A. 420 B. 42 C. 210 D. 21 Hint 6. Which fraction can be expressed as in simplest form? A. B. C. D. Hint 7. What is the least common multiple of 4 and 8? A. 4 B. 24 C. 8 D. 16 Hint 8. How would 9.3 × 10-7 be written in standard form? A. 0.000000093 B. 0.00000093 C. 93,000,000 D. 930,000,000 Hint 9. The diameter of a volcanic particle averaged 0.000022 meter. What is this measure written in scientific notation? A. 0.22 × 10-4 B. 2.2 × 10-5 C. 2.2 × 105 D. 2.2 × 10 Hint 10. Which inequality represents the situation seven less than a number is no more than 25? A. B. C. D. Hint 11. If a recipe calls for pounds of meat for 6 servings, how much meat is necessary for 8 servings? A. lbs. B. lbs. C. lbs. D. 5 lbs. Hint 12. The results of a survey show that 11.8% of people watching television watched a particular movie. If there were approximately 758,000,000 viewers, how many people watched the movie? A. 89,444,000 B. 668,556,000 C. 64,237,288 D. 178,888,000 Hint 13. Add –6 + (–6). A. 12 B. –6 C. –12 D. 0 Hint 14. Simplify 2n + 6(n – 7). A. 8n – 42 B. 8n – 7 C. n D. 15n Hint 15. Write 3 · x · x · x · x · y · y · y · y using exponents. A. 3x4y4 B. 3xy8 C. 34x4y4 D. 3>x4y3 Hint 16. Find A. 102 B. 12 C. 1012 D. 112 Hint 17. Write the expression m-7 using a positive exponent. A. B. C. m7 D. -m7 Hint 18. Evaluate x – y if and A. B. C. D. Hint 19. Express as a percent. Round to the nearest tenth percent, if necessary. A. 35.60% B. 3555.60% C. 355.60% D. 3.60% Hint 20. Find 68% of 79. A. 537.2 B. 0.5372 C. 53.72 D. 5.372 Hint