Jerry has $300 in a checking account that he is not using. He’s forgotten that the bank charges 1% every month the balance falls below $500. Compute the ending balance for the next 3 months.

Suppose that prices of a gallon of milk at various stores in one town have a mean of $3.71 with a standard deviation of $0.10. using chebyshev's theorem, what is the minimum percentage of stores that sell a gallon of milk for between $3.41 and $4.01? round your answer to one decimal place.