The school cafeteria has 13 round tables and 20 rectangular tables. Each round table has 7 chairs, and each rectangular table has 8 chairs. How many chairs are there in all?

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is

What is the slopeof the live that passes through the points and (-2,-5) and (3,-1)

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.