You have 850 feet of fencing to enclose a rectangular field. Express the area of the field, A, as a function of one of its dimensions, X. A(x) = 0

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

What is the volume of this square pyramid?

Louis wants to carpet the rectangular floor of his basement. the basement has an area of 864 square feet. the width of the basement is 2/3 it's length. what is the length of louis's basement