when working overtime, an auto mechanic gets paid 1.5 times the normal hourly wage. overtime is the amount of time worked beyond 40 hours in a week. the auto mechanic's normal hourly wage is $20.00. last week, the auto mechanic worked 46 hours.

part a- write an expression to represent the amount of money earned last week.

part b- evaluate the expression you wrote in part a to find the amount of money earned last week.