Jack takes out a student loan for $6,000 at a simple interest rate of 11.3% per year. How much total interest will Jack owe at the end of 6 years? Assume he does not make any payments during that time?

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?