Which of the following numbers is divisible by both 5 and 10

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 of the following contains a variable?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12