Will give brainliest! Solve algebraically for all θ on the interval [0°, 360°). Show work please!

cos2θ=2cosθ-cos^2θ

The parking lot of a store has the shape shown. all angles are right angles. what is the area of the parking lot?

Kayla and alberto are selling fruit for a school fundraiser. customers can buy small boxes of grapefruit and large boxes of grapefruit. kayla sold 3 small boxes of grapefruit and 1 large box of grapefruit for a total of $65. alberto sold 1 small box of grapefruit and 1 large box of grapefruit for a total of $55. what is the cost each of one small box of grapefruit and one large box of grapefruit?

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?