The answer would be D. (11,14),(8,18)
To find the answer you need to find an equal slope.
To find the slope you need to do y2-y1/x2-x1
Y2 is 18, y1 is 13, x2 is 8, and x1 is 11
18-13/8-11
5/-3=
-5/3
Area = side * side
5/6 * 5/6
= 25/36
You can just use sine.
Sin(F) = opposite/hypotenuse = 28/40.
F =

(28/40)
Plug into your calculator.
44.4
let "my number" = x
Multiply x by 5: 5(x)
and add 13: + 13
your expression would look like:
5x + 13
hope this helps