John added too much water to his syrup, and now he has 10 ounces of 20% syrup. How much water should be evaporated to turn it into 50% syrup? PLS ASAP

What is the pattern in the values as the exponents increase?

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?

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the