c) 0.65*(P-35); $107.25
This can be easily found by elimination and plugging in.
We know it can't be "d" because that's the only answer with $95.00. It can't be "a" either because it starts with (P-0.35), unlike the other answers. Now you're left with "b" and "c".
We know that the original price is 200, which we plug in for "P".
b) 0.65*(P)-35
0.65*(200)-35
130-35 = 95
This doesn't equal $107.25, so it can't be the answer.
c) 0.65*(P-35)
0.65*(200-35)
0.65*(165) = $107.25
Therefore the answer is C.