One saturday, sam and joe worked together to mow lawns. sam started at 8: 00 am and joe started at 11: 00 am. when they finished at 4: 00 pm, they had earned a total of $156. they want to share the money they earned fairly based on the number of hours worked. how much should joe receive?

Sam worked from 8am to 4pm, for a total 8 hours. 
Joe worked from 11 am to 4 pm, for a total of 5 hours. 

Combined, they worked 8 +  5 = 13 hours, and earned $156. 
That means they earned 156 ÷ 13 = $12 per hour

Sam worked 8 hours, so he should receive 8 * 12 = $96

Joe worked 5 hours, so he should receive 5 * 12 = $60

Answer is $60