Sara is grocery shopping. She needs laundry detergent, which is on sale for 30% off its regular price of $8.00. She also needs dog food, which she can buy at three cans for $4.00. Which of the following represents the total cost, before tax, if Sara buys x bottles of laundry detergent and 12 cans of dog food?
A. C = 2.4x + 48
B. C = 5.6x + 16
C. C = 5.6x + 48
D. C = 8.4x + 16
Answer:B
Sara is grocery shopping. She needs laundry detergent, which is on sale for 30% off its regular price of $8.00. She also needs dog food, which she can buy at three cans for $4.00. Which of the following represents the total cost, before tax, if Sara buys x bottles of laundry detergent and 12 cans of dog food?
A. C = 2.4x + 48 B. C = 5.6x + 16 C. C = 5.6x + 48 D. C = 8.4x + 16
Explanation: B