Witch expressions are equivalent to x + 2y + x +2

Drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. the heights of the girls in an advanced swimming course are 55, 60, 59, 52, 65, 66, 62, and 65 inches. match the measures of this data with their values.

Find the solution of this system of equation -7x+y=-20 9x-3y=36

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?