If you would like to know how much money did they collect in total, you can calculate this using the following steps:
 Travis ... t = $43
 Jessica ... j
 Robin ... r
 120% of j is t
 120% * j = 43
 120/100 * j = 43
 j = 43 * 100 / 120
 j = $35.83
 r = 135% of t = 135% * 43 = 135/100 * 43 = $58.05
 t + j + r = $43 + $35.83 + $58.05 = $136.88
The correct result would be C. $136.88.