Sorry dont really know :/
Answer:
Make a coordinate plane and you have to solve around the origin say 4,4 and 4,1.
Step-by-step explanation:
8.25% of 55.60 = 4.58700
We round that number to 4.59
(I am assuming the tip is based on the amount of the pretax bill.)
15% of 55.60 = 8.34
So $55.60 + $4.59 + 8.34 = $68.53
The bill would be $68.53.
