Determine the period of the function y = -3cos(pi/5)x.

a. 3
b. 8
c. -3
d. 10

From a party ,lori made a fruit punch from 1 gallon of orange juice ,2 quarts of grape juice,5 pints of pineapple juice,and 12 cups of cranbarry juice order the juice from least to greatest amount used in the fruit punch