She can walk 4.5 miles in 3 hours
Answer:
C) Chase did not make a mistake.
Step-by-step explanation:

( step#1 )
( step#2 )
Step 1: Divided each side of the equation by 1/3 which is correct.
Step 2: simplified from g - 3 = 9 to g=12
Therefore, Chase didn't make a mistake.
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She bought a single purse for 29.95
She bought x belts for 3.99 each;
Total cost for belts= 3.99*x
=3.99x
The equation thus is;
29.95+3.99x