Answer:
2 bills and 1 coin
Explanation:
Given
![Lite = \$3.50](https://img.qammunity.org/2021/formulas/mathematics/high-school/k6qptm68jgv7wuiimq4nkp5jh09rpmpxbu.png)
Required
Fewest number of bills and coins she can get receive as change
FIrst, we need to calculate her change
Change = Amount Paid - Lite
![Change = \$10 - \$3.5](https://img.qammunity.org/2021/formulas/mathematics/high-school/j6ixkp5bw6bp1yyau7gsv7ru8muppc608g.png)
![Change = \$6.5](https://img.qammunity.org/2021/formulas/mathematics/high-school/drzc1xb376m5v763n6594a1b8cm3uk8r51.png)
Next is to split the change to bills and coins
![\$6.5 = \$5\ bill + \$1\ bill + 50 cents](https://img.qammunity.org/2021/formulas/mathematics/high-school/joxddnwfh3h8egj092c6f9n7gpbw8nebff.png)
The $5 and $1 makes 2 bills while the 50 cents makes 1 coin.
Hence, the minimum she could receive is 2 dollar bills and 1 coin as change