What ratio is equal to 4/5

1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Don't know how to find x given these segment lengths