2
11. Multi-Step Lucy spent $16.08 for a dog
collar and $43.57 for a dog bed. She has
$25.45 left. How much money did Lucy
have before she went shopping?
n

9. (y^-5)^10y^10 a. y^-60 b. y^60 c. y^-150 d. y^150 find the simplified form of each expression. 10. (4/7^5)^2 a.8/14^10 b.16/49^25 c.16/49y^10 d.8/14y^25 11. determine if the number 3.43 times 10^-6 is written in scientific notation. if not, explain. a. yes; the number is written scientific notation. b. no; the first factor is not a number between 1 and 10. c. no; it is not written as a number times a power of 10

25) 56(1) = 5b a. identity property of addition b. identity property of multiplication c. commutative property of multiplication d. commutative property of addition

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2