Added dog years expression with comments.
Slice of the pie  varibels entered and commented.
//Slice of the Pie part II
// Givens: Number of slices 7, People at the party 32, Number of pizzas ordered 12.
//Result Variables: Sparky will get 7 whole slices
added in .625 times the number of poeple to come up with 20 whole slices for sparky.
Solved for Average shopping bill: "You have spent a total of $463.57 on groceries over 5 weeks. That is an average of $92.714 per week"
Solved the print for Discounts.