Select the correct answer. What is the image of this figure after this sequence of dilations?

1. dilation by a factor of -1 centered at the origin
2. dilation by a factor of 2 centered at (-1,1)

Pick the expression that matches this description: a polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 (choice a) 7x^5+2x^2+6 (choice b) 7x^6−6x^4+5 (choice c) 6x^7−x^5+5 (choice d) 6x^5+x^4+7

For how answer my question this will be the last question can you answer in math subject

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.