Answer:
The inequality for this would be n ≥ 20.
We know this because it must be larger than 40. We also know it can possibly be equal because the statement says "at least".
Step-by-step explanation:
For this case we have by definition of trigonometric relations of rectangular triangles that, the sine of an angle is given by the opposite leg to the angle on the hypotenuse of the triangle. Then according to the figure we have:

We cleared CA:

Answer:
Option A
Y=3/4x-2 would be your equation :)
You find this with y=mx+b with m being your slope and b being the y-axis point
Answer:
C. 20%
Step-by-step explanation:
50*2=100
40*2=80
100-80=20