what is the minimum number of additional letters needed to obtain a string containing blocks of equal lengths

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

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?

We just started the introduction into circles and i have no idea how to do this.