Who was the first african american inventor to get a patent

Terry, a self-employed laboratory consultant specializing in white mice, attended a convention in paris concerning the care and feeding of white mice. the convention was held in paris since most of the white mice specialists in the world are located in france. terry's expenses were $1,600 for airfare, $400 for food, and $400 for lodging. terry spent 5 days at the convention and 3 days visiting friends. how much can she deduct for the trip?

The following costs were incurred in may: direct materials $ 44,800 direct labor $ 29,000 manufacturing overhead $ 29,300 selling expenses $ 26,800 administrative expenses $ 37,100 conversion costs during the month totaled:

Afarmer is an example of what kind of producer?