If a line segment has endpoints a(3x + 5, 3y) and b(x − 1, −y), what are the coordinates of the midpoint of ab ?
(x + 3, 2y)
(2x + 3, y)
(2x + 2, y)
(4x + 4, 2y)

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