Soda is on sale for $0.75 a can, and you have a coupon for $0.50 off your total purchase. Write a function rule for the cost of n sodas. How much would 10 sodas cost? (1 point) Responses
A. C(n) = 0.5n - 0.75; $4.25
B. C(n) = 0.75n - 0.5; $7.00
C. C(n) = 0.5n - 0.5; $4.50
D. C(n) = 0.75n; $7.50
C(n) = 0.75n - 0.50
To find the cost of 10 sodas, plug in n = 10 into the function:
C(10) = 0.75(10) - 0.50
C(10) = 7.50 - 0.50
C(10) = $7.00
Therefore, the cost of 10 sodas is $7.00.
The correct answer is B. C(n) = 0.75n - 0.50; $7.00.