The sum of the areas of two circles is 8070 square meters. Find the length of a radius of each circle if
one of them is twice as long as the other. What is the radius of the larger circle ?

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