(PLEASE HELP EASY QUESTION)

What is the slope of the line perpendicular to y= -1/3x - 2

If m 17 27 90 63 ** picture is attached

Which of the following graphs could represent a cubic function?

Margaret is purchasing a house for $210,000 with a 15 year fixed rate mortgage at 4.75% interest she has made a 5% down payment the house is valued at 205,000 and the local tax rate is 3.5% homeowners insurance 600 per year what are her total monthly payment