If U= {1, 2, 3, 15}, A= {2, 4, 6, 8, 10, 12} and C= {1, 2, 3, 4, 5, 6, 7}, find ( A U B ) n C​ with vein diagram.

You make and sell triangular flags. each flag has a base of  3.53.5  feet and a height of  2.52.5  feet. fabric for the flags costs  $0.40$0.40  per square foot. what is the cost to make one flag?

What is the binomial expansion of (2x-3)^5

One positive number is 9 more than twice another. if their product is 95, find the numbers