Charlie had 995 baseball cards. His little brother stole 260 of his cards. He estimated that he still about 800 cards remaining. Based on his estimation skills, is he correct in his assumption? (Use what you know about rounding to solve.)

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?

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour. what is the cyclist average rate for the round trip in miles per hour ?

Once george got to know adam, they found that they really liked each other. this is an example of what factor in friendship