Subtotal: $3.48
Tax: $0.28
New Subtotal: $3.76
Hope this helps!
She would get 4 dollars back because 15 times 4 is 60 and 18 tomes 2 is 36 add them and you get 96 subtract 96 from 100 and 4
The square root of 293 is 17.11.
-1 is the answer to your question