A study was conducted to investigate the relationship between the resale price, y (in hundreds of dollars), and the age, x (in years), of midsize luxury American automobiles. The equation of the line of best fit was determined below.

yhat = 183.8 − 20.48x

(a) Find the resale value in dollars of such a car when it is 3 years old.
$

(b) Find the resale value in dollars of such a car when it is 6 years old.
$

(c) What is the average annual decrease in the resale price in dollars of these cars?
$

a. In the given Eq, replace X with 3 and solve. Multiply the results by 100.

b. Same procedure as "a".