The difference between 9 thirty-sevens and 8 thirty-sevens

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.

Aline passes through 3,7 and 6,9 what equation represents the line

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?