Answer:
4
Step-by-step explanation:
This is a special right triangle, specifically the 30-60-90 triangle. See attached image for how sides relate.
Answer:
Option C is correct.
The equation of line graphed is, 
Step-by-step explanation:
Point slope form: The straight of line in the form of :
......[1] where m is the slope.
Consider two points from the given graph:
(0, 0) and (2, 1)
First calculate slope:
Slope(m) = 
Substitute the given values we have;

Substitute the given values m and (0,0) in [1] we have;

Simplify:

therefore, the equation of line graphed is, 
Explanation:
60x5 = 300
8x20 = 160
25x9 = 225
33x10 = 330
300+160+225+330= 1015
so....
the answer is B. 1015