It’s asking how many people will know about the interior designing company after a the fourth group of three has been told (draw a tree stem diagram to better understand)
Answer:
18, the answer to 8+10 is 18, like you learn in 1st grade
X-y=-1
x+y=5
y=x+1
x+x+1=5
2x+1=5
2x=4
x=2
y=x+1
y=2+1
y=3
I beleive it is a because both variable could change
Answer:
from my opinion second option is right
