Need to check to see if these are correct.

Classify the following populations as either finite or infinite (They cannot be both):

a. grains of sand on a beach = infinite

b. number of students in a class = finite

c. number of cups in a cafeteria = finite

d. amount of sunflower seeds in a five-pound bag = infinite

e. number of glasses in New York City = infinite

f. number of dimples on a golf ball = finite