an investigator traveling on official buisness in his personal vehicle had to make emergancy repairs to the vehicle. he paid $150 for the repairs to the vehicle for repairs plus 15% of this amount to compensate the mechanic for the repair work performed overtime. the investigator's office reimbbursed him $100 plus 40% of any amount over $100. which one of the equations represent the amount that the investigator was reimbursed for the repairs?