IN THE RECTANGLE BELOW, SOLVE FOR X GIVEN THAT a=51 and ILL BRAINLIEST YOU PLEASE HELP ME

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

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

How is working backward similar to solving an equation?