The answer is 
Steps: (<em>in the attachment</em>)↓↓↓↓↓
<em>Hope this helps!!</em>
Joe: 24
John: 2/3 of 24 is 16
Jessie: 24 + 16 = 40; 1/5 of 40 is 8
Jessie makes $8 an hour.
Answer:
x=4.5
Step-by-step explanation:
The sum of all the angles in a square=360°
20(4.5)=90
90×4=360