so she saved $20 and that was 40% of the regular price, let's say the regular price is "x".
if 20 is 40%, what is "x" or namely the 100%?

ANSWER
C. x=7
EXPLANATION
The given exponential equation is

We rewrite the right hand side as 3 raised to exponent 2.

Observe that the base of both sides of the equation are equal.
We now equate the exponents.

Solve for x,


The correct choice is C.
Answer:
5.35
Step-by-step explanation:
Rate of change is slope
So change in y/change in x
150/3=50