I NEED HELP ASAP WITH EXPLANATION PLEASE$!_!$! which equation can you use to solve for m?

1) 5m = 105

2) 5m + 105 = 90

3) 5m + 105 = 180

4) 5m + 105 = 360​

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

What is the surface area of a cube with the volume of 729 ft?

Need me know if option a,b,c are wrong so ik its d