The student council at one high school must choose two representatives from each of the sophomore, junior, and senior classes to attend the annual student council convention. If there are 6 sophomores, 5 juniors, and 7 seniors on the student council, in how many ways can the group be chosen for the convention? 

"Get 15% discount on your first 3 orders with us"
Use the following coupon
FIRST15

Order Now