The following table shows the number of patients treated and the total costs for a hospital for each of the past four months:

Month

Patients

Total Cost

$

1

5,000

37,500

2

8,400

45,660

3

8,300

45,050

4

5,900

39,420

Applying the high low method to the above information, an equation that could be used to forecast total cost ($) from the number of patients to be treated (where x ??number of patients to be treated) is:

A 22,900 ??2.40x

B 24,300 ??2.50x

C 25,000 ??2.50x

D 25,500 ??2.40x