Can someone please answer this question please answer it correctly and please show work please help me I need it please help

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.

Y=x+2 4x+3y= -36 system of equation