Your allowance increases by $2 every month. You started earning $20 per month. Write a formula to find how much allowance you will earn after n months.

Which graph represents an even function?

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.

Which system of linear inequalities is represented by the graph?