Element X decays radioactively with a half life of 9 minutes. If there are 860 grams of Element X, how long, to the nearest tenth of a minute, would it take
the element to decay to 94 grams?

Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.

21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?

The longer leg of a 30-60-90 trangle is 18