What is the difference between 3,0 and 3,-2

What is a possible solutions of the x> 3?

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.

What rotation was applied to triangle def to create d’e’f’?