Juan has baked a cake and wants to sell it in his bakery. he is going to cut it into 12 slices and sell them individually. he wants to sell it for three times the cost of making it. the ingredients cost him $8.50, and he allowed $1.25 to cover the cost of electricity to bake it. write equations that describe the following statements
a. the amount of money that he sells the cake for (u).
b. the amount of money he charges for each slice (c).
c. the total profit he makes on the cake (w).