The answer is 2/5.
There is an 8/20 chance that the next person will receive a window seat. You simplify that probability to get your answer. 8/20 becomes 2/5. So the answer is 2/5.
7) -5-x=0
x=-5
8) 4x-36=0
4(x-9)=0
x-9=0
x=9
Answer:
So sorry if what I solved is wrong .I did my best!