Please I’ll mark u brainleast

This question awards 100 ! i really don’t want to fail i will also mark you !

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.

X2 + y 2 = 36 x + y = 6 solve the system of equations.