A.
Tangent is Opp/Adj
tan = 10/24
And cotan is tan flipped so
Adj/Opp
Cot= 24/10
A.
widest to narrowest: y=3/2x2, y= -1/2x2, y= 1/4x2
Here's a table of the function y=-2x-3
600 +200 + 100 = 900
2000 - 900 = 1100
1100/6 = 183.33 so he can buy 183 games