Element X decays radioactively with a half life of 11 minutes. If there are 140 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to
decay to 33 grams?
y = a(.5)

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Fill in the table with whole numbers to make 430 in five different ways