John the worker had 31,000 in taxable income . what was his tax

If an athlete can bike 6 miles in 25 minutes, how many miles will he bike in an hour and half if he continues to bike at the same rate?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.