What's the quotient of this?

I've never been good at math he told he loves but he keeps cheating on me, so it ain't adding up sis

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.

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships