An element with a mass of 550 grams decays by 11.3% per minute to the nearest tenth of a minute how long will it be until there are 50 grams of the element remaining

2 x t divided by n

step-by-step explanation:

i think you would have to divide the money he had saved, which is $2,000 by the time he plans on exercising which is 40 hours, and the answer you get should tell you the answer to your question.