Asports memorabilia store makes $6 profit on each football it sells and $5.50 profit on each baseball it sells. in a typical month, it sells between 35 and 45 footballs and between 40 and 55 baseballs. the store has no more than 80 footballs and baseballs in stock during the month. what is the maximum profit the store can make from selling footballs and baseballs in a month?

We are given with $6 profit per football sold and $5.50 profit per baseball sold. There are 35-45 footballs and 40-55 baseballs sold but there are only 80 balls stock in the store. The maximum profit is incurred from selling more of football and less of baseball. The equal number could also be possible. Having 40 footballs and 40 baseballs can be a possibility. However, having 39 footballs and 41 baseballs has smaller profit than the equal number. Likewise, 41 footballs lead to 39 baseballs which are not within the range. The answer is 40 footballs and 40 baseballs with a total profit of $460. 

The answer is that the rate of change is $50 per 1 monthhope this ; )