<PRE><B>Question 1117813</B>
let x equal the number of shirts they sold.
let x also equal the number of subscriptions they sold, since they sold the same amount of shirts as subscriptions.


the profit on the shirts is 5x - 20.
5x is the profit per shirt.
20 is the one time set up free.


the profit on the subscriptions is 4x.
there is no set up fee.


if the profit is the same, then 5x - 20 = 4x.


solve for x to get x = 20


when they sell 20 shirts, their profit is 5*20 - 20 = 80.


when they sell 20 subscriptions, their profit is 4 * 20 = 80.


same number of shorts sold as subscriptions.
same profit from each.</PRE>