Robert has a collection of nickles, dimes, and quarters. The total value of the coins is $8.50. He has 3 times as many nickles as dimes, and 10 more quarters than dimes. How many of each coin does he have.

Ms. aniston asked seven students in her class to collect pet food cans for a local animal shelter. the dot plot shows the number of food cans collected by each student. each dot represents one student. what is the median of the data set? a. 6 b. 9 c. 7 d. 8