Answer: They spent $100 on ice cream.
Explanation:
Given : Total friends = 5
They bought each $24 worth of toppings.
Total price of toppings = (Total friends ) x (Worth of each topping)
= 5 x ($24)
= $ 120
Total expense = $220
Money amount on ice cream = (Total expense) - (Total price of toppings)
= $220 - $120
= $100
Hence, they spent $100 on ice cream.