Help me out I am dum

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

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5

What does the sign of the slope tell you about a line?