Explain how to find the percent of a number then show an example

Need asap. solve for the following inequality

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

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