Which represents the inverse of the function f(x) = 4x?

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.

Three times the sum of a number and seven is negative thirty-six. what is the number?

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.