8.2 + (–8.2) = 0 what property of math is this

What is the greater volume 72 quarts or 23 gallons

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

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