You've heard that adding a "Cookie of the Month" subscription box could increase your sales.

Customers pay $$30$ per month for a dozen cookies, which has the same variable costs as individual

cookie sales except shipping costs of $$2\mathrm{.}40$ per box. Your fixed costs, however, will drop $$1000$ since

you do not need to rent a trendy place any longer. Calculate how many subscription boxes you would

need to sell each month to break even only from subscription sales.