Verify the identity.

cos 4x + cos 2x = 2 - 2 sin2 2x - 2 sin2 x

What is 99 divided by 3

Find the slope of the line. 4x - 2y=3 Write your answer in simplest form.

3 = square root to x+2+6

Packs of batteries cost £2.85 each. Ben has £45 to spend on batteries. Ben buys as many packs as he can. Work out how much change he should get from £45

Simplify. 2x - 15 + 3x - 33 - 10

37 is more than y, what is the translation

Twenty-five percent of 200 is what number?

Sketch a graph of the relation y+4=2 (x-3)

A circular mirror has a diameter of 12 inches what is the area in sqaure inches of the mirror

The city of Southville is building a new city park. The total cost of the park is p. To pay for the park, the city has contributed x dollars toward the project, and each citizen, c, of Southville has contributed y dollars.