Answer:
Explanation:
Let x represent the number of hours that Catie babysits.
She spent $26 to make signs to advertise. This means that her total cost is $26.
She charges an initial fee of $5 and then $3 for each hour of service. This means that her revenue for x hours of babysitting would be
5 + 3x
Profit = Revenue - total cost
It means that the revenue must be greater then the total costs for her to make profit. Therefore,
5 + 3x > 26
3x > 26 - 5
3x > 21
x > 21/3
x > 7
She must babysit more than 7 hours in order to make profit.