Translate the graph of y = -x? to produce the graph of y = -x? - 4?

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

In the next 10 month,colin wants to save $900 for his vacation.he plans to save $75 each of the first 8 months. how much must he save each of the last 2 months in order to meet his goal if he saves the same amount each month ?

Gabrielle's age is three times mikhail's age. the sum of their ages is 40 . what is mikhail's age? __ years old