assume the cooler contains 34 cans, 21 of which are regular, and the rest of which are diet.

(1) How many ways can you choose 4 cans from the cooler?

(2) How many ways can you choose 4 regular cans from the cooler?

(3) How many ways can you choose 4 diet cans from the cooler?

(4) How many ways can you choose 4 cans from the cooler so that at least 3 are diet?

Please let me know how you did it :)