HELP IMMIDIATELY MY TEACHER IS TIMING ME! 30 POINTS

Which statements about these triangles is true

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.

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5