In: Advanced Math
A pizza place is having a special: 10 medium pizzas for $50. They only allow you to choose one of their 6 different specialty pizzas though, with no substitutions. You and 6 friends are having a get-together (so 7 people altogether), and you decide to order pizza for the group. Each person gets to choose one type of pizza, and then you are responsible for choosing the remaining 3. Once all 7 people have chosen their pizza, how many total ways are there for you to complete the order?