There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is

5

8

.

There are 56 marbles in total in the bag and each is equally likely to be chosen.

Work out how many red marbles there must be.

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