4, 14, 6, 9, 21, 3, 7, 10

what is the median of this data sample?
a. 7
b. there's no median value.
c. 9.25
d. 8

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?