Lena, darren, and yolanda all have summer jobs. lena earns $598 in 46 hours of work. darren earns $700 in 50 hours of work. yolanda earns $15 per hour. who earns the most money per hour. (there can be more than one person)

First figure out how much how much they earn per hour by using division: 
Lena: 598 ÷ 46 = 13- earns $13 per hour
Darren: 700 ÷ 50 = 14- earns $14 per hour
Yolanda: Already given- earns $15 per hour

You can see that Yolanda earns the most compared to the other two so Yolanda earns the most money per hour. Hope it helped.