Use the permutation formula below to find the number of outcomes when n = 10 and r = 6. n!/ (n-r)!

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

What are “like terms”? why can we only add like terms?

Select the quadratic that has root x = 8 and x = -5