Answer:
18.4
Step-by-step explanation:
Answer: the answer is 4.5
x=18 y=69
3x+5y=399
x+5y=363
2x=36
x=18
18+5y=363
5y=345
y=69
A. x > 21 2/3
x is greater than 21 and two thirds
i did the math :]