I want to say x=-3 and y=6.
Hope this helps. If you have any further question ask me in comment.
Answer:
To find the sum of interior angles in a polygon, we can use the formula:
where n is the number of sides.
Since this is pentagon (5 sides), then 
The missing angle would then be

Since angles on a straight line add up to 180, then


So you would do,
18 gallons of water divided by 0.5 gallons of water
if you did that correctly you should have gotten... 36 jugs
Answer:
28 is 11/60
29 is 7/30
Step-by-step explanation: