Answer:

Step-by-step explanation:
Given expression:

Substitute

into the expression:

21 because it is being multiplied
First find the slope of the line so change in y over change in x so 4-2/1-2 which is 2/-1 so -2 is your slope then plug that as well as a point from above to find your y intercept so y=mx+b 2=-2(2)+ b then you have 2=-4+b then add 4 to each side and you find b is six then you make ur equation from your slope and y int(b) y=-2x+6
Answer:
A ) Near equator
B ) Near the poles
C ) Areas where solar radiations is most direct
D ) Only in the no