Answer:
$16.40 per CD before tax
Step-by-step explanation:
4 CDs cost $70.40
70.40 / 4 = 17.60 (this includes the tax)
Remove the tax
17.60 - 1.20 = $16.40 per CD before tax
negative; -1/4
Y=X/3+3
M= Y2-Y1/X2-X1
= 5-6/6-9
= -1/-3
= 1/3
sub x=6, y=5, M=1/3 into Y=MX+C
5=6/3+C
5=2+C
5-2= 2+C-2
3=C
