Elmhurst elementary organized an ice cream social for the incoming sixth graders. At the social, 7 students chose vanilla ice cream for every 5 that chose chocolate ice cream. If 84 students chose vanilla ice cream, how many students chose chocolate ice cream?

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?