Answer:
42.04
Explanation:
First we need to crunch the numbers on a calculator to figure out how many packs of rolls vs. how many cheese slices will be over 100.
Since there are 120 cheese slices in 6 packs (six times 20 equals 120)
and there are 120 rolls in 8 packs (8 times 15 equals 120)
Then it says we have to have a double amount of cheese, so we need 12 times 2.23 which equals 26.76
Then figure out how much the cost of the rolls are by multiplying 8 times 1.91 which equals 15.28
Next add the two totals together, 26.76 plus 15.28 is 42.04
42.04 is the least amount she can spend for over 100 sandwiches.