Using the digits 1 to 9, without repeating any numbers, place a digit in each box that will create 3 equivalent ratios.

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

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.