The students from mr. jansen's class and mrs. schmidt's class went on a trip toa science museum. admission was $8 per student. the total cost for all of the student's admission was $320. mr. jansen has 16 students in his class. how many students does mrs. schmidt have?

An equation where variables are used to represent known values—function notation true or false

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

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?