That's not enough information to calculate your grade from.
-- You've told us the scores you have in things that go together
to make up (35 + 5 + 25) = 65% of your grade.
-- We don't know your scores in the things that make up the other
35% of your grade.
-5t2 + 40t = 0
5t(-t+ 8) = 0
5t = 0 or t = 8
The answer is A.
The equation simplifies to y=3x+50.
So, C is already not an option.
Now we just plug in points to see if the point works for the equation.
A-11=3(-13)+50
11=-39+50
11=11
Thus, this point falls on the line of this equation and is a point.
So, the answer is A.
I hope this helps!