Find the surface area composite figure

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.