How do I use a trigonometric function to find the value of x

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

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?

Ill mark the brainliest if you me with the these three questions 7,8,9