Element X decays radioactively with a half life of 12 minutes. If there are 200 grams
of Element X, how long, to the nearest tenth of a minute, would it take the element to
decay to 50 grams?

y= a(.5) +

What is the slope of a line that is perpendicular to y = 3x + 1

Two parallel lines are crossed by a transversal.what is value of x

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .