a girl has $4200 to invest for 4 months. if she needs the money to earn $112 in that time, at what rate of simple interest must a girl invest?

Asinusoidal function whose frequency is 1/6pi

The computer that controls a bank's automatic teller machine crashes a mean of 0.6 times per day. what is the probability that, in any seven-day week, the computer will crash less than 5 times? round your answer to four decimal places

Find the measure of angle c in the following triangle.