Sarah had a balance of $155 in her bank account at the start of the week. She withdrew $65.50 on Monday, $23.25 on Wednesday, and $26.45 on Thursday. On Friday she deposited $165.30. Write an expression that represents Sarah's spending.

Expenditure = $50

Step-by-step explanation:

Sarah had a balance of $155 in her bank account at the start of the week.

She withdrew $65.50 on Monday,

$23.25 on Wednesday and,

$26.45 on Thursday

On Friday, she deposited $165.30

Total amount of money she withdrew = $65.50 + $26.45 + $26.45 = $115.20

Amount remaining = $155 - $115.20 = $39.80

After depositing $165.80 on Friday, her account had; $165.30 + $39.80 = $205.10

Expenditure = Final value in account minus initial value of the money in her account before start of the week

Expenditure = $205.10 - $155 = $50.10

table 3 represents a direct variation function. : )