$80 + $8x = 240
First, let’s firgure out how much Jack earned per hour. To do this, let’s subtract the $80 bonus from $240
240 - 80 = 160
So now we know he earned $160 on hourly salary.
Let’s divide 160 by 8 to figure out how many hours he worked
160 ÷ 8 = 20
Therefore, Jack worked a total of 20 hours last week
Hope this helps you
-AaronWiseIsBae