The BelleMaison Hotel in Paris has a spectacular view of the Eiffel Tower. The BelleMaison has a gift shop that sells a variety of Eiffel-themed souvenirs. The most popular item is a key-ring in the shape of the Eiffel Tower. The sales budget for key-rings for the next 4 months is as follows Month Key-ring Sales July 600 August 800 Sept 700 October 860 It is expected that the shop will be holding 150 key-rings in stock at the beginning of July. The shop manager always like to keep 25 per cent of the next months key-ring sales in stock.

Answer the questions below, using two decimal places where necessary.

How many key-rings should be purchased in July?

How many key-rings should be in stock at the beginning of August?

How many key-rings should be purchased in August?

How many key-rings should be in stock at the end of August?

How many key-rings should be purchased in September?

How many key-rings should be in stock at the beginning of October?