Y=2x+5 x=5x+9 how do you solve this solution

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

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

Find the power set of each of these sets, where a and b are distinct elements. a) {a} b) {a, b} c) {1, 2, 3, 4} show steps