Answer:
7.5
Step-by-step explanation:
3 + 9 + 13 + 8 + 10 + 2 = 45
There are 6 numbers so we divide 45 by 6
45/6 = 7.5
100 - 25 = 75
120/100 X 75 = 90
sale price is $90
b. line of best fit
7+8=15
50%
