Suppose that a piano costs $5,000 and loses 20% of its value each year. The table below shows the value, v, of a piano after t years. Which of the following pairs of coordinates would represent the missing values in the table?

Write an equation that can be used to find the value of the piano, v, after t years

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 d

step-by-step explanation:

you can also use mathway to get you answer + steps

54 it just is

step-by-step explanation: