1) In how many ways can someone order a pizza (sauce and cheese included) if there are 5 choices of toppings available?(assume that you can't order a pizza with no toppings)

Options: a. 10 b. 32 c. 31 d. 15

2) How many different sums of money can you make with 3 quarters, 3 dimes, and 3 pennies (assuming you have more than $0.00)?

Options: a. 27 b. 63 c. 26 d. 64

3) How many five-letter codes can be formed from two different vowels and three different consonants? Consider Y a vowel. (remember a "code" can be rearranged!)