Element X decay radioactively with a half life of 14 minutes. if there are 490 g of element X how long to the nearest 10th of a minute will it take the elements of a case of 123 g

Myron put $5000 in a 2-year cd playing 3% interest, compounded monthly. after 2 years, he withrew all his money. what was the amount of the withdrawal?

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.

I’m not good at math can i have ? ?