ATF Special Agent Exam Prep

An investigator traveling on official business in his personal vehicle had to make emergency repairs to the vehicle. He paid $150 for the repairs plus 15% of this amount to compensate the mechanic for repair work performed overtime. The investigator’s office reimbursed him $100 plus 40% of any amount over $100. Which one of the equations below represents the amount that the investigator was reimbursed for the repairs?