Answer:
1) To calculate how much it would cost Abi to buy 24 sodas at the vending machines at work, we can multiply the cost of one can ($0.75) by 24 (24 sodas):
Cost at vending machine = $0.75 x 24 = $18
2) To calculate how much Abi can save each day by buying the 24 pack of soda and taking one with her to work, we can subtract the cost of one can at the vending machine ($0.75) from the cost of the 24 pack at Foodtown ($3.25):
Savings each day = $3.25 - $0.75 = $2.50