One equation in a system of equations is y=4x−5. Write a second equation to complete the system if the solution to the system is (3, 7).

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).