Answer:
Im not sure that really makes sense but I think your grade would be 90% if you did 8/9 or somewhere around that
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Answer:
I think its flat sorry if it's wrong
Step-by-step explanation:
x=y+9
substitute
3(y+9)+8y=-6
3y+27+8y= -6
13y = -6 -27
13y= -33
y = -33/13
x = -33/13 + 9