Solve for x: 5·2^3x =21

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Describe the domain and range of y=2(3)^x-2+5