Simplify 5 to the 5th over 5 to the 8th. 1 over 5 to the 3rd power 53 1 over 25 1 over 5 to the negative 3rd

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 expression converts 45 degree to radians

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)