Anne and maria play tennis almost every weekend. so far, anne has won 12 out of 20 matches. how many matches will anne have to win in a row to improve her winning percentage to 75%?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?