What is the perimeter of a figure having side lengths of 4 ft, 7 ft, 6 ft, 5 ft and 7 ft

Is the orthocenter of a triangle on the inside ?

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

W-16=-12 solve each one step equation plz