There are 131 students at a small school and 35 of them are freshmen. What fraction of the students are freshmen? Use "/" for the fraction bar. Do not use spaces in your answer.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

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?