Suppose the amount of a radioactive element remaining in a sample of 100 milligrams after x years can be described by A(x) = 1002-0.01121x. How much is remaining after
172 years? Round the answer to the nearest hundredth of a milligram.
687.66 mg
0.15 mg
14.54 mg
192.81 mg

Aye asap pls ! markin da brainiest too ! btw da step choices are all add, distribute, divide, n subtract

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.

Ineed on this question me get the answer