Simplify the following equation by combining like terms. 4x+2-x+10

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

Abook store is having a 30 perscent off sale. diary of the wimpy kid books are now 6.30 dollars each what was the original price of the books

The center on a target has a diameter of 5 inches. the whole target has a diameter of 25 inches. complete the explanation for what part of the whole target is the center. the center of the target takes up % of the whole target.