Answer:
800
Step-by-step explanation:
Answer:
I think it might be D. 15, Im not sure though, If its not im very sorry.
Step-by-step explanation:
Answer:
if you have the value of x then y =x +7
i really dont know how to help for #2, but for #4 you would set them equal to each other
4. 3x-10=2x+30
x-10=30
x=40
