To find out how much Jason earned babysitting, we first need to calculate the total cost for the skateboard and helmet.
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Total Cost Calculation:
- Cost of skateboard: $45.50
- Cost of helmet: $18.25
- Total cost = Cost of skateboard + Cost of helmet
- Total cost = $45.50 + $18.25
Let's do the addition: \[ 45.50 + 18.25 = 63.75 \]
So, Jason needs a total of $63.75 for the skateboard and helmet.
- Now, we need to determine how much Jason earned babysitting. However, the problem states that he earned part of the money by mowing lawns and the rest by babysitting, but we do not know how much he earned from mowing lawns.
Since the question seems to suggest that we can work with the answer choices provided, we could consider each solution and check if it allows for the total to equal $63.75, but we first need to know how much he earned mowing lawns to accurately determine the amount he earned babysitting.
Given the information, we cannot solve the problem without knowing how much he earned mowing lawns. If you have that specific number or a portion he earned from either activity, please provide that to help determine how much he earned from babysitting specifically.