Can you please fin x and y

Askateboard ramp is in the shape of a right triangle what is the height of the ramp

Find the domain and range of the following function f(x) = 51x - 21+ 4

Anew landowner is interested in constructing a fence around the perimeter of her property. her property is 1,080√30 feet wide and 500√20 feet long. what is the perimeter of the property? (recall that the perimeter is the sum of each side of a shape or boundary). a 1,580√40 feet b. 5,320√5 feet c. 3,160√20 feet d. 10,640√5 feet