Given:
Total bill = $67.65
Mr. Scott paid with four $20 bills.
To find:
The amount of change he have received.
Solution:
It is given that, Mr. Scott paid with four $20 bills. So, the total amount paid by him is:

Total bill = $67.65
Now,
Amount of change = Total amount paid - Total bill
= $80 - $67.65
= $12.35
Therefore, he should have received $12.35.
113.1cm2 squared. Vvvvvvvvvvvvgghfhf
![\boldsymbol{\sf{5+4\cdot(8-6)^{2} \ \ \longmapsto \ \ [Subtract \ 6 \ from \ 8.] }}](https://tex.z-dn.net/?f=%5Cboldsymbol%7B%5Csf%7B5%2B4%5Ccdot%288-6%29%5E%7B2%7D%20%5C%20%5C%20%5Clongmapsto%20%5C%20%5C%20%5BSubtract%20%5C%206%20%5C%20from%20%5C%208.%5D%20%20%7D%7D)

Calculates 2 to the power of 2 and gets 4.
![\boldsymbol{\sf{5+4\cdot4 \ \ \longmapsto \ \ [Multiply] }}](https://tex.z-dn.net/?f=%5Cboldsymbol%7B%5Csf%7B5%2B4%5Ccdot4%20%5C%20%5C%20%5Clongmapsto%20%5C%20%5C%20%5BMultiply%5D%20%7D%7D)
![\boldsymbol{\sf{5+16 \ \ \longmapsto \ \ [Add]}}](https://tex.z-dn.net/?f=%5Cboldsymbol%7B%5Csf%7B5%2B16%20%5C%20%5C%20%5Clongmapsto%20%5C%20%5C%20%5BAdd%5D%7D%7D)

Substitute the value of the variable into the expression and simplify.
1. 24
2. 17