Answer:
the correct anwser is -3 and if you need anymore help the website i use is
Step-by-step explanation:
https://www.tiger-algebra.com
Answer: true
Step-by-step explanation:go go go
x = 3
y= 12
2x + 2y = 30
y - 4x = 0 /*2
2y - 8x = 0
-----------------
10x = 30
8 hrs
4*2=8 i think
