Find the unit rate for 80 inches over 10 days

What is the simplified form of 7 √x • 7 √x • 7 √x • 7 √x?

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?

For which pair of functions is (gof)(a)=|a|-2?