Jennifer needs to purchase a computer for her company. The price of the computer is c dollars, and sales tax is 9%. Select all the expressions that represent the total amount she will pay.

c(.09)=t

Step-by-step explanation:

let C = the amount of the computer times .09 (sales tax) ,  t will represent the

the total amount of a computer

hope that helps a bit

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 c 150

step-by-step explanation: