According to a survey,25%of students at a particular school. a total of 200 students take the bus .how many students attend this school?

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out