# Algebra

Corrine has a job selling magazines. She earns \$7.50 per hour plus 20% of the total amount of her sales. She also gets an allowance of \$40 per week for gas. She knows her weekly earnings can be shown using the following expression.
7.50h + 0.20s + 40

Part A: Identify a coefficient, a variable, and a constant in this expression.

Part B: If Corrine works for 25 hours and sells \$300 in magazines, how much does she earn for the week? Show your work to receive full credit.

Part C: If Corrine gets a raise and begins earning \$9 per hour , would the coefficient, variable, or constant in the equation change? Why?

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1. 7.50h + 0.20s + 40 The variables are the letters. The coefficients are the numbers in front of the letters. There is only the one constant of 40. Use 25 for h and 300 for s. Whether 7.50 or 9 or whatever other hourly pay rate, that is still called a coefficient.

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2. Thank you , Thank you so much Brandy :)

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3. That's just for A correct?

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4. B. Just plug in the numbers for h and s, and evaluate
C. the coefficient for h will change

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oobleck

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