Find au b if a ={ 4,7,10,13,17} and b={3,5,7,9}.

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?

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.