Answer:
b. Sheet Cake
Explanation:
We have to first find the cost of all 3 products to find out which one will cost $6.50 to bake and decorate.
In order to find the cost, we need to multiply the time required by each product with its hourly cost.
For Giant Cookie:
Total Cost = Cost of 0.5 hours Baking + 0.25 hours Decorating
= 0.5(4) + 0.25(7)
= $ 3.75
For Sheet Cake:
Total Cost = Cost of 0.75 hours Baking + 0.5 hours Decorating
= 0.75(4) + 0.5(7)
= $ 6.5
For 3-Tired Cake:
Total Cost = Cost of 1.5 hours Baking + 1.25 hours Decorating
= 1.5 (4) + 1.25(7)
= $ 10.75
Thus, Sheet Cake costs $ 6.50 to bake and decorate.