Direct linear variation-

amelia paid $252 for 28 cases of granola bars for the snack bar. the total cost varies directly with the number of cases purchase. how much will she pay for 10 cases of granola bars?

Ineed to know the answer to this algebra question.

When you have 25 numbers, and jake picks 3 random numbers and puts them back, what is the chance bob has of picking those 3 numbers when he picks 6 random numbers (without putting them back)? explain.

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.