If someone would be so kind as to do 7 & 8 for me it would be much appreciated. No diagram for 8 needed btw.

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?

The number of branches on a tree demonstrates the fibonacci sequence. how many branches would there be on the next two levels of this tree? 13 | | | m branches

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?