Answer:
$43
Step-by-step explanation:
Given
[tex]Savings = \$88[/tex]
[tex]Earnings = \$29[/tex]
[tex]Amount\ Left = \$74[/tex]
Required
Calculate the amount spent
First, we need to calculate the total amount she had.
[tex]Total = Savings + Earnings[/tex]
[tex]Total = \$88 + \$29[/tex]
[tex]Total = \$117[/tex]
Represent amount spent with x.
The relationship between total amount, spending and amount left is:
[tex]Total - x = Amount\ Left[/tex]
[tex]\$117 - x = \$74[/tex]
Collect Like Terms
[tex]x = \$117 - \$74[/tex]
[tex]x = \$43[/tex]