In order to solve the system of equation {x-3y=2 {2x+y=11 using the elimination method which of the following step could be used?

If the perimeter of the square equals the perimeter of the regular pentagon. each side of a pentagon is 16cm long. how long is each side of the square?

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

Fred and gene are hang gliding. fred is 700 feet above the ground and descending at 15 ft/s. gene is decending as shown in the table. interpret the rates of change and initial values of the linear functions in terms of the situations they model. show all work. freds equation is f(x)=-15x+700. ( genes is the table attached)