AccelePrep for the ACT Test 2nd Edition Student Text

C HAPTER 5 | H YPER P REP M ATH • 111

POWER PRACTICE 2 DIRECTIONS: Solve each problem and circle your answer. Answers are on p. 309. 1. If x 3 x 4 3 , and x 3 ! , then x ? A. 3 B. 4 C. 5 D. 7 E. 9 2. Y years ago, Paul was twice as old as Bob. If Bob is now 18 years old, how old is Paul today in terms of

3. A merchant increased the original price of an item by 10%. If she then reduces the new price „› ͳͲΨǡ –Š‡ ϐ‹ƒŽ ’”‹…‡ǡ ‹ –‡”• ‘ˆ –Š‡ ‘”‹‰‹ƒŽ price, is equal to which of the following? A. a decrease of 11% B. a decrease of 1% C. no net change D. an increase of 1% E. an increase of 11% 1 2 , and x 1 ! , then x ? F. 1 G. 2 H. 3 Ǥ ͳͳ K. 12 5. Which of the following is the factorization of x x 6 4 2 2 ? A. ( ) ( ) x x 6 1 3 B. ( ) ( ) x x 2 2 3 2 C. ( ) ( ) x x 2 3 1 1 D. ( ) ( ) x x 2 1 3 1 E. 2( ) ( ) x x 3 1 1 4. If x 1 12

Y ? F. Y 36 G. Y 18 H. Y 18 Ǥ Y 36 K. Y 36 2