A number of identical cups are stacked up. The number of cups in a stack and the height of the stack in centimeters are related. a. Can we say the height of the stack is a function of the number of cups in the stack? Explain your reasoning.

The center of a circle represent by the equation (x+9)^2+(y-6)^2=10^2 (-9,6), (-6,9), (6,-9) ,(9,-6)

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.