Published And Unpublished Sources

What is the averge number of non-academic books published by publisher R and S ?

If the total number of boks published P,Q and R is increased by 30% and the total number of books pyblished by remaining publishers be decreases by 20% what will be the new average of books published by all the publishers ?

How many books were given to each distributor by publisher Q if each publisher gets equal number of books ?

The following table shows the expenditure incurrd by a publisher in publishing a book. Draw a pie chart representing the above data.

Carolus Linnaeus published Species Plantarum in ________.