The 20 adult females in a small population each have a probability of 0.5 of producing a single offspring each year and a probability of 0.5 of producing no offspring. How many female offspring will be produced each year?

Becca wants to mix fruit juice and soda to make a punch. she can buy fruit juice for $3 a gallon and soda for $4 a gallon. if she wants to make 28 gallons of punch at a cost of $3.25 a gallon, how many gallons of fruit juice and how many gallons of soda should she buy?