What conclusion can be derived by comparing the central tendencies of the two data sets?
a: {7, 6, 3, 1, 6, 2, 4, 6, 3, 5}
b: {2, 2, 2, 3, 4, 5, 2, 8, 7, 6}

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?

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

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