Seaside View Aquarium has a catfish and a dogfish. The catfish is 7 inches longer than the dogfish. The dogfish is 35 inches long. How long is the catfish?

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.