Marj has two $20 bills, three $5 bills, and $4.50 in loose coins in her wallet. If she buys a cake that costs $17.50, how much money will be left in her wallet?
Let’s work this out in a step by step way to be sure we have the right answer.
42
Two $20 bills amount to $20 x 2 = $40.

Three $5 bills amount to $5 x 3 = $15.

So, Marj has $40 + $15 + $4.

50 = $59.

50 in her wallet.

If she buys a cake, she will be left with $59.

50 - $17.

50 = $42.

.

The final answer: 42