What shape haves 6 sides

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

Write the equation in logarithmic form m^x=n

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)