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?
A function rule for the cost of n sodas can be written as follows:
Cost(n) = (0.75 * n) - 0.50
To find out how much 10 sodas would cost, substitute n = 10 into the equation:
Cost(10) = (0.75 * 10) - 0.50
= 7.50 - 0.50
= $7.00
Therefore, 10 sodas would cost $7.00.