Set these numbers from least to greatest 2/3, -0.6, 0.65, 4/5

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?

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

One positive number is 9 more than twice another. if their product is 95, find the numbers