For each of these statements find a domain for which the statement is true and a domain for which the statement is false. a) everyone is studying discrete mathematics. b) everyone is older than 21 years. c) every two people have the same mother. d) no two different people have the same grandmother.

The answer is eastern europe

If 1/5 of the students are in the football team and the class has 40 students, you need to multiple this numbers to know the exact number of students that form the team.40 x 1/5 = 8 studentsif 4 more students join: 8+4= 12 studentsto know the %: 40 students are equivalent to the whole class (100%). then 12 students are how much %? 40 students  = 100%12 students  =    x  %x= 30% of students are in the team.