1. Name the property of equality shown by the statement: If c = 4, then 3c = 3(4). A. Reflexive Property of Equality B. Symmetric Property of Equality C. Transitive Property of Equality D. Substitution Property of Equality Hint 2. Simplify the expression 5 · (15a). A. 75a B. 15a5 C. 15a - 5 D. 15a + 5 Hint 3. What is the difference 6 - (-6)? A. 12 B. 0 C. 6 D. -6 Hint 4. Find the product -4(5). A. -20 B. 9 C. -9 D. 20 Hint 5. The population of a particular town decreased by 6000 people in 4 years. What was the average change in population per year? A. 24,000 B. -1500 C. -24,000 D. 1500 Hint 6. A mathematical sentence that uses < and > to compare two expressions is called a(n) ______. A. variable sentence B. inequality C. expression D. equation Hint 7. When two fractions are compared, the cross products are the products of _____. A. the consecutive terms B. the denominators C. the diagonal terms D. the numerators Hint 8. Ten students were comparing their weekly allowances. The allowances were \$4.50, \$7.00, \$5.00, \$10.00, \$5.00, \$12.50, \$8.50, \$17.50, \$20.00, and \$12.00. What is the mean of this set of data? A. \$10.20 B. \$9.25 C. \$102.00 D. \$5.00 Hint 9. In 1960, Chile experienced the largest earthquake of the century. The magnitude was 9.5 on the Richter scale. In 1952, Ecuador had the fourth largest earthquake. The magnitude was 0.7 less than the earthquake in Chile. What was the magnitude of the earthquake in Ecuador? A. 7.8 B. 8.8 C. 11.2 D. 10.2 Hint 10. Solve the equation |a - 1| = 7. A. 8 B. -6 or 8 C. -8 or 6 D. -6 Hint 11. Maryann went to a restaurant with her friend Weldon. She had to spend one dollar for parking. As a tip, she left the waitress one fourth of the cost of her meal. Which expression represents how much money she spent at the restaurant altogether? A. B. C. D. Hint 12. Name the property of numbers shown by the statement:23 · 0 = 0 · 23 = 0. A. Multiplicative Property of Zero B. Additive Identity C. Multiplicative Identity D. Substitution Property Hint 13. Simplify the expression 4n + (5 + n). A. 5n + 5 B. 3n + 6 C. 9n D. 8n + 5 Hint 14. Kendrick has been saving his money. He started out with \$55.00. After one week he had \$70.00. After another week he had \$85.00. After a third week he had \$100.00. How much will he have after five weeks? A. 115 B. 120 C. 105 D. 130 Hint 15. Find the sum -4 + (-1). A. -3 B. 5 C. -5 D. 3 Hint 16. Evaluate if c = 16 and d = -2. A. 2 B. 8 C. -8 D. -2 Hint 17. Find 9.2 – 3.1. A. 12.3 B. -6.1 C. -12.3 D. 6.1 Hint 18. The following shows the number of people that ate at a fast food restaurant each hour. What is the mode of the data? A. 30 customers B. 20 customers C. 50 customers D. 40 customers Hint 19. Which equation does the model represent? A. x + (-3) = -2 B. x + 2 = 3 C. x + (-2) = -3 D. x + 3 = 2 Hint 20. Solve -19 + |t| = 12 A. no solution B. -7 C. 31 D. -31 or 31 Hint