What is the area of regular pentagon with a side of 12 inches? round the answer to the nearest 10th.

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.