Step-by-step explanation:


30x = 9(2x+6)
30x = 18x+54
30x-18x = 54
12x = 54
x = 54/12
= 27/6
Answer:
It has to be 40° or 55°, I think.
sorry if wrong.
There would be a vertical dotted line at -1 and a horizontal solid line at -3. Then you could shade the lower right hand corner.
Step-by-step explanation:
didn't you study
you should learn nicely and listen to your teacher