Answer:
$60 is original price... 20% or .20 off of that price is $12
$90 because you take the discounted price then divide it by .40 (40%)
Step-by-step explanation:

r² (q + bx) = ax - p
qr² + bxr² = ax - p
qr² + p = ax - bxr²
qr² + p = x (a - br²)

Answer:
Diagram B
Step-by-step explanation:
it doesn't go through 0 and it's not got a correlation it's a scatter graph that's actually really scattered so it doesn't show a place for a line of best fit
C is the answer ! Just had this question