Solve using square roots x^2-81=0 4x-25=0 x^2-18=0 3x^2-8=25 x^2+72=0

Astraight water slide is 175 feet above ground and is 200 feet long. what is the angle of depression to the bottom of the slide?

Arectangular garden is 5 feet long and 3 feet wide. a second rectangular garden has dimensions that are double the dimensions of the first garden. what is the percent of change in perimeter from the first garden to the second garden?

I'm marking the brainliest and it's 15 points