Answer:
Try to use your calculator and just substitute values
Step-by-step explanation:
To find the gcf you have to wright down the factors of both the numbers, all of them. Then, find the one that is the greatest number, but both 36 and 27 have, which would be 9
Answer:

Step-by-step explanation:
First draw a line. I will put it in an attachment so you can see the line.
Now choose to points on the line to use the slope formula.
(0,15) and (3,13).
Slope formula: 
Plug in the information needed using the two points chosen.

The slope is
.
Now use point-slope formula.
Point-slope formula: y-y1=m(x-x1)
y-15=
(x-0)
y-15=
x-0
Subtract 15 from both sides.
y=
x-15
Hope this helps!
If not, I am sorry.
Answer:
Step-by-step explanation:
Let the number be x.
2x + 2 = 5x
Collecting like times
2 = 5x - 2x
2 = 3x
x = 2/3