which set of ordered pairs does not show y as a function of x? {(3,-2);(5,-3);(7,-4):(9,-5)} {(3,-2);(6,-2):(9.-2):(12,-2)} {(4,-2):(5,-3):(6,-4);(7-5)} {(4,-2);(5,-3);(4,-8):(5.-9)} ​

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

Would greatly appreciate these 3 answers

Is (root2 -2)^2 rational or irrational. show the steps and answer fast