45) lí the midpoint of ab is (4,3) and point a has coordinates (-2,6),
what are the coordinates of point b?

Midpoint has a formula x plus x2 divided by 2 and vice versa for y
So to solve you need to fill in numbers
You can replace x with negative 2 since you know that the coordinates for point A are -2,4
Solve to get 10
And vice versa for the y coordinate you solve the filled in equation to get 0
Your end result is 10,0

1195 was the store owner's profit.

1.3 and 1 1/3 are both closest to 1. hope this ; )