$*10.$ Formtech Inc. produces transformers. Each order is custom designed and manufactured for the customer. Each order goes through $3$ phases:

Transformer Design, which takes $4$ weeks.

Procurement, which has a lead time of $8$ weeks.

Assembly and Testing, which takes $4$ weeks.

The design group can handle only $6$ projects at any given time. The other groups are not capacity constrained.

Please answer the following:

How many projects is Formtech able to complete per year?

How much total work$-$in$-$process $($number of projects started but not yet completed$)$ does the company typically have? $($Hint: Little's Law$)$