What’s the correct answer for this? Select all the ones that apply

Find the length of cu, the triangles are similar.

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 expressions is equal to 2x^2+8