What is the circumference of a circle of 15 inches?

If myesha works overtime, she gets paid "time and a half" for every hour she works. in other words, for every hour over 40 hours myesha works each week, she gets her hourly pay plus half her hourly pay. what is myesha's pay per hour when she works overtime?

Answer pls man im trying to get out of summer school

Can someone tell me if this is perpendicular? !