Option A:
The equation for the trend line is y = 82x + 998.
Solution:
The points on the line are (2, 1162) and (11, 1900).
Here, 
Slope of the line:



m = 82
Point-slope formula:



Add 1162 on both sides of the equation.

The equation for the trend line is y = 82x + 998.
Hence Option A is the correct answer.
0.000044, because 10 to the negative fith is 0.00001, and 0.0001 times 4.4 is 0.000044
Step-by-step explanation:
5(tanx)^2 -2 +tanx=0
let tanx=y
5y^2 + y-2=0
y=0.5403 or y= -0.7403
tanx=0.5403
x=arctan(0.5403)
x=28.38°
or
tanx=-0.7403
x=arctan(-0.7403)
x=143.49°
His score changed by 110 points.
Explanation: 3*30=90 & 200-90=110 points