How do you use your line of best fit to calculate predicted sales at each price? Please help!

2.2.4 Fitting Linear Models to Data (a/p-e!x)

the correct option is b

step-by-step explanation:

it is 10.6 according to my calculations

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated

5 feet of chain cost $9

so the answer is 1.80