What is the mystery number. it has 8 more tens than ones?

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.

Can someone me and do the problem plz so i can understand it more better

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.