What is the domain of the function f(x)=2/5 square root x

Imade a fort for my pet gorilla by connecting two boxes. the first box is 555 meters long, 999 meters wide, and 999 meters high. the second box is 333 meters long, 888 meters wide, and 222 meters high. how many cubic meters of space does my gorilla have to play in her fort?

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?

Find the zeros of each function. f(x) = 6x^2 - 7x - 20