How would you find out how many sixth through eighth-grade students are interested in joining a running club? Explain how to choose a sample that will give you a good representation of the whole population.

30 pts, will mark brainliestwhat is the period of the sinusoidal function? (picture 1)what is the minimum of the sinusoidal function? (picture2)what is the maximum of the sinusoidal function? (picture 3)

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)