Answer:
The tip will be $3.05.
The bill will cost $18.28 with the tip and tax.
Step-by-step explanation:
14.50 + 5% (or 0.73) = 15.23
15.23 + 20% (or 3.05) = 18.28
(a+b)(a+b)
=a^2 + ab + ab + b^2
=a^2 + 2ab + b^2
I think the third one on both part a and b can't be used to find the answer