the function f is given by f(x) = (x - 6)(x - 2). Multiply out the factors using the area model or distributive property. What expression do you get

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

Pls! does anybody know a shortcut for answering these types of questions in the future?

Josie buys a pair of boots that retail for $52.00 dollars, however they are currently on sale for 25% off how much does josie pay for the boots if there is also a 6% sales tax on them