I guess he needs to save $4 more to buy the shoes
Answer:
D.
Bob should use the mean to make his selling price look like it's the greatest.
Answer:
<h3>y = - 1/2x - 1/2</h3>
Step-by-step explanation:
Equation of line is y = mx + c
where m is the slope
c is the y intercept
Slope of the line using points
(1, -1) and (-3, 1) is

Equation of the line using point
( 1 , - 1) and slope - 1/2 is

Hope this helps you.
Adding 4 to both side is wrong he has to be subtract 4 to both side