Answer:
A: The coupon was for 20% off
B: The price without a coupon is $14.73
C: Your friend can afford a small pizza
Explanation:
I knew for A that it was 20% off because 20% of $16.25 is $3.25 and if you were to add $3.25 to $13 it would equal the normal price of $16.25
I knew for B that it was $14.73 without a coupon because $10.31 is 70% of $14.73
I knew for C that it was a small pizza because 15% off of $11.60 is $9.86 and since she only has %10 that is the biggest pizza that she can buy
