A 78 gram sample of Uranium loses half of its mass each year. What is the exponential equation?

Arrange these numbers from least to greatest 3/5 5/7 2/9

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Fracisco's game involves 3 green, 2 yellow, 4 red, and 3 black marbles. if he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black? a)1/192 b)1/72 c)3/220 d)1/55