Wadena Search and rescue estimates the monthly cost of responding to emergency calls to be $90,000, plus $450 per call.

A-1. In a month in which the company responds to 90 emergency calls, determine the estimated total cost of responding to emergency calls.

A-2. In a month in which the company responds to 90 emergency calls, determine the estimated average cost of responding to emergency calls.

B. Assuming that in a given month, the number of emergency calls was unusually high. Would you expect the average cost of responding to emergency calls during this month to be higher or lower than in other months?