Answer:
She needs to make 10 rows of chairs
Hope this helps!!
3(X-4)=6+x
3x-12=6+x
3x-x=6+12
2x=18
Both side divided by two
x=9
A
Step-by-step explanation:
the type of wave out of a speaker.
150
You have to mulitply all the three numbers together to find the area of the figure. But if it is permiter then you add it