A frequency table of grades has five classes ( A , B , C , D , F ) with frequencies of 2, 15, 13, 8, and 1 respectively. Using percentages, what are the relative frequencies of the five classes?

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140