Katie's mother has put her in charge of planning a suprise party for her little sister. She plans to serve indvidual cakes for each person and ice cream. She does not know how
much each individual cake will cost. They have 5 family members coming along with 10
friends. Katie needs to figure out how much the cakes will cost so she can get the
money from her mother. How can she formulate a single variable expression to
determine the total costs of the cakes? Use the variable c to represent the cost of 1
Cake.