If a family has three children, what's the probability that at least two of them are girls?

a. What was the last year which read the same right side up as upside down? b. What will be the next year?

This region was a kingdom of Czechoslovakia until the 15th century, when it passed to Hungary and then to the Hapsburgs. It became the core of the new state of Czechoslovakia in 1918. Today the name can refer to certain artistic intellectuals. Which regio

39,370 inches is equivalent to what unit of distance?

Joe drank 1/3 of a glass of milk in one swallow, then drank 4/5 of the remaining milk in another swallow. What fraction of the original milk was left?

How would the number 70 (in base 10) be represented in base 3?

In how many different ways could a basketball player score exactly 8 points in a game? (Combinations of foul shots, 2-pointers, and 3-pointers).