First, multiply the price of each item by the number of items to find the total amount of money spent on each:
2 packages of corn for $0.99 each
![2*0.99=1.98](https://img.qammunity.org/2023/formulas/mathematics/college/rxjzlxz1lyr4b5yphz7tll71wdrlo1iqwf.png)
3 gallons of milk for $2.90 each
![3*2.90=8.70](https://img.qammunity.org/2023/formulas/mathematics/college/dybleh7ces02nmmd8s5n6i3ngujc0obq5g.png)
A loaf of bread: $1.29
Then, add all the quantities to find the total price for all the purchases:
![1.98+8.70+1.29=11.97](https://img.qammunity.org/2023/formulas/mathematics/college/r426ljkjdvdr8t3qdbtjodibosa8ymnwt6.png)
Substract the total price of the purchases from $20.00 to find the amount of change that Sasha gets back:
![20.00-11.97=8.03](https://img.qammunity.org/2023/formulas/mathematics/college/lo3xc73zsp6bhvne6irwplmhbe9r7yn7xq.png)
Therefore, the amount of money that she gets back, is:
![8.03](https://img.qammunity.org/2023/formulas/mathematics/college/vdtgjv8myrotledvc4vzsqty9qfit832f4.png)