Which is the best first step and explanation for solving this system of equations? 3x+4y=12 3x=2y-8

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

Which of the choices shown could be used to prove that aacp=abcp ?

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?