Chapter R.1, Problem 60PE

5k-7equals -42

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25*-G (5*)+ 5 = 0 ç (5*)+ find the solution set-

number 7

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Solve algebraically. Include a number line showing with test points (like in the lesson) or an interval table (like the text) to show how you determined your answer. 9. x2+3x+2 x2-9

PRE-ALGEBRA REVIEW 1. A shark is located at -650 feet relative to the surface of the water. If the shark begins to descend another 24 feet every 5 minutes, which expression represents the location of the shark relative to the surface of the water after two hours? A. -650-(-240) feet B. -650 + (-240) feet C.-650-(-576) feet D. -650+ (-576) feet. 60 33) 60 180 2 $16 Name: Date:

Write the mathematical expressions that match the sentence. a. A number decreased by 12   b. The difference between my allowance and 250 pesos is less than 50 pesos. c. One-fifth of the books in my collection and two-thirds of the books in my father’s collection make 250 books. d. Six more than twice a number. e. Two hundred pesos is taken away from Jun’s allowance, and what is left is 450 pesos.