16. Louis is very hungry when he spots a hot dog stand. The stand sells softdrinks for $1.25 each and hot dogs for $2.50 each. Louis has $21 in hispocket and he really wants to buy one soft drink and as many hot dogs ashe can purchase. How many hot dogs can he buy?He can purchase 7 hot dogs.He can purchase 8 hot dogs.He can purchase 14 hot dogs.He can purchase 15 hot dogs.