Ken and Paul have been mowing lawns to earn extra money. Their jobs earn $52 per week. Ken worked for x weeks and earned an extra $20. Paul worked for y weeks. From the expressions below, select one that determines the total amount that Ken and Paul earned mowing lawns. (5 points) a
72x + 52y

b
52x + 20 + 52y

c
52x − 20 + 52y

d
52x + 72y