Mathematics

1 August, 20:49

You give a salesperson $20 for a purchase and receive change. Which function would you use to find the amount of change from a $4.50 purchase? What is the correct change? a. a (c) = c - 20; $5.50 c. a (c) = c - 20; $15.50 b. a (c) = 20 - c; $5.50 d. a (c) = 20 - c; $15.50

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