Mikah invented and patented a new product which sells in local department stores. this is an example of income.

Correct answer is Passive income

Mikah invented and patented a new product which sells in local department stores. This is an example of PASSIVE income.

Passive income can be defined as that money which is earned with minimum  activity and require little daily effort on the individual's part. Like here in the question, Mikah invented and patented his own product. Other ideas of passive income include like- creating your app, designing t shirts etc.

a = 11 : 4

b = 38

c = 1 for every 6

the two may have that, even a breakdown is probably offered