Which best describes how to add 9.73 and 21.6

What kind of bond pays interest which is exempt from tax?

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.

Find the distance between (0,5) & (-4,2)