Ricardo has 250 baseball cards in his collection. If 46% of the cards show players that are pitchers, how many pitchers’ cards does he have?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)