Plz ! need this asap! thx so much! find m∠pmk plz show ur work!

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?

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items