Is the function represented by the table non-linear? x / y 6 / 4 7 / 2 8 / 0 9 / -2

Explain the answer and how to do it

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.

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?