211-gram sample of a radioactive substance. Find the mass after two hours if it decreases according to a continuous exponential , at a relative rate of 9% per hour. Do not round any intermediate computations, and round your answer to the nearest tenth.

Nick and nora are married and have three children in college. they have an adjusted gross income of 47,400. if their standard deduction is 12,600 itemized deductions are 14,200 and they get an exemption of 4000 for each adult and each dependent what is their taxable income

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.

It takes an ant farm 3 days to consume 1/2 of an apple. at that rate, in how many days will the ant farm consume 3 apples