18. Two planes left an airport at the same time. One flew north at a set speed and the other flew south at one-and-a-half times the speed of the other plane. Three hours later the planes
were 2400 miles apart. How fast was each plane flying?

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%

1/2+1/6-3/4 simplify the given expression leaving the answer in improper fraction form.

Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.