The question is in the picture. Will mark brainliest! :D

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

Twelve less than a number is at most 20

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17