Question

Mike earns $38 each week for doing chores. He spends g dollars each week on gas for his car. If he only spends money on gas and saves the rest, which of
the following expressions represents the amount of money he has saved after 8 weeks?

Answer 1

The expression why represents the amount of money he has saved after 8 weeks is y = 304 - 8g

Given:

• Amount Mike earns per week = $38
• Amount spent on gas each week = $g
• Number of weeks he saved = 8
• Amount of money he has saved = y

Algebraic expression

The expression which represents the amount of money he has saved after 8 weeks = (Amount Mike earns per week × Number of weeks) - (Amount spent on gas each week × Number of weeks)

y = (38 × 8) - (g × 8)

y = 304 - 8g

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