Robert sold 20 cups of lemonade and 50 cups of ice tea at the FFA stand at the county fair. What percent of the drinks sold were lemonade? (Round to the nearest tenth) *

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?