The first question Suppose that I was able to obtain the data contained in the following table related to the maintenance department of the Al Wasat Factory company for the first six months of 2022.

maintenance costs( Y)	Operating hours ( x)	month
2370	300	January
2960	380	February
3180	420	march
3410	480	April
4650	630	may
4700	650	June

Required

1. Determining the equation of the mixed cost line using: (The variable cost (B) and then the fixed cost (A) must be determined in order to determine the equation.)

a. Maximum and minimum method.

2. Estimate the mixed costs for the seventh month, assuming that the activity level is 1,000 hours? (by the equation given in 1)