Leap years normally occur every four years. However, years at the turn of a century are leap years only if they are multiples of 400. Therefore, 2000 was a leap year but the year 1900 was not. How many leap years will there be between 2001 and 3001?

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?