$2\mathrm{.}7.$ A company wants to develop a level production plan for a family of products. The opening inventory is $100$ units,

and an increase to $150$ units are expected by the end of the plan. The demand for each period is given in what

follows. How much should the company produce each period? What will be the ending inventories in each period?

$7$ All periods have the same number of working days.

$2\mathrm{.}8.$ A company wants to develop a level production plan for a family of products. The open$-$ing inventory is $550$

units, and a decrease to $200$ units is expected by the end of the plan. The demand for each of the periods is given in

what follows. All periods have the same number of working days. How much should the company produce each

period? What will be the ending inventories in each period? Do you see any problems with the plan?

$22$ Your comment on the plan is: