Use the table to determine the appropriate model of the function,  x 0            1            2            3            4      f(x)     3            7            29            87            199      

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

the answer is "add 2y and y"

step-by-step explanation:

you need to collect the like terms first.

answer: i think it is c