Find the value of the coefficient a in the equation ax+2y=8, if the solution to the equation is the pair x=2 and y=1. HELP PLS

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?

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

Which expression is rational? 6. , square root two, square root 14, square root 49