If a man sells hot dogs for $ 5 and his marginal costs is $1, his fixed costs $80,000 is

open 200 days a year. Then

a) what is the gross profit per hot dog sold?

b) How many hot dogs does he need to sell to break even?

c)What would be his sales revenue at break even?

d) How many hot dogs does he need to sell per day to break even.