I'm struggling with this practice problem.

II. Fill in the following table from the data given below: TC MC ATC TVC AVC 6 7 8 (a) AFC for 8 units of output is 4.5. (b) AVC for 4 units of output is 15. (c) TC is increased by 14 when the 5th unit of output is added. (d) The ATC of 6 units of output is the same as the ATC of 5 units. (e) TC for 7 units of output is 168. (f) TVC is increased by 64 when the 8th unit of output is added. (g) AFC + AVC for 2 units of output is 40. (h) ATC is decreased by 10 when output is increased from 2 to 3 units. (i) It costs 26 more to produce one unit of output than to remain shut down