Answer:
This is an independent event, as the marble is put back into the bag. If it were removed completely, it would be dependent.
Answer:
Quadrant 4
Step-by-step explanation:
Look at the picture. I highlighted quadrant 4. You can see that the graph did not pass the highlighted area.
Answer:
121°
Step-by-step explanation:
Sum of angles in a pentagon = ( n-2) 180
(5-2)180
=3x180
=540°
X+87+92+105+135=540
X+419=540
X=540-419
X=121°
Answer:
the variable is being increased by 5/2
Step-by-step explanation:
7 = n + 
to solve, you isolate the variable
you can do this by subtracting the
from both sides
7 
the
on the right cancels out, leaving you with

which simplifies to

Answer:
More than 20. I'll be more precise. There are 24 ways.