What is the range of the function f(x)=7-3x when the domain is {-4, -2, 0, 2}?

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me