Can someone please help me

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

Consider circle o, where and . m∠bpd °. °.

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x