Answer:
Basic model is $6,250
Deluxe model is $18,750
Total of technical support cost for the month is $25,000
Explanation:
The starting point in solving this question would to compute the technical support cost per call before applying the unit cost to the two models as below
technical support cost per call=$250,000/10000=$25 per call
Technical support cost for Basic model=$25*250=$6,250
technical support cost for deluxe model=$25*750=$18,750
The total cost of technical support cost for the month =$6250+$18750=$25,000