Evaluate the expression 2m+2n if m=9 and n=3

Find the real solution x^4-x^3+2x^2-4x-8=0

During a sale, customers receive an extra discount if they spend $200 or more. So far, Erin's purchases total $135. Which inequality can be solved to show how many more dollars d she must spend to receive the extra discount?

Engineering students at riverside college last year received, on. Average, $11,070 in scholarships and grant money. This year, the average is 20% higher. What is the average this year?

A blanket is being wrapped for a gift. A cylinderical tube is being used, but needs to be gift wrapped. The tube is 24.5 inches tall and has a radius of 7 inches. Approximately how much wrapping is needed to wrap the tube?

A high school is chosen at random from this list. Let event A = The high school has a hockey team. Let event B = The high school has a golf team. 1. Which high schools offer both hockey and golf? What is P (A and B) 2.

8 (3 - 2x) would equal 24 + (-16x) correct?

A 21 foot beam is to be cut into three pieces so that the second and the third piece are each 3 times the length of the first piece if x represents the length of the shorter piece, find the lengths of all three pieces

What is the volume of this aquarium 24 in 8 in 12 in

A 174 inch pipe is cut into two pieces. One piece is two times the length of the other. Find the length of the shorter piece.

Your friend has recently learned about coprime numbers. A pair of numbers {a, b} is called coprime if the maximum number that divides both a and b is equal to one. Your friend often comes up with different statements.