A teacher uses ⅕ of the students in a class to make 3 equal groups. What fraction of the students in the class is in each group the teacher made?

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?

Find the amplitude of a sinusoidal function that models this temperature variation