State the possible number of positive and negative roots for the equation x^6 - x^4 - x^2 + 1 - 0

A) Possible # positive real roots: 3 or 1
Possible #negative real roots: 2 or 0

B) Possible #positive real roots: 4
Possible # negative real roots: 2 or 0

C) Possible #positive real roots: 2 or 0
Possible #negative real roots: 2 or 0

D) Possible # positive real roots: 4,2, or 0
Possible #negative real roots: 2

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

Robert is placing sod in two square shaped areas of his backyard. one side of the first area is 7.5 feet. one side of the other area is 5.7 feet. the sod costs y dollars per square foot

Harold wrote this equation to model the level of water in a pool over time. the variable x represents time in hours. f(x) = 3,500 - 225x which statements about the situation are true? check all that apply. the water level is rising. the water level is falling. the initial level of water in the pool was 3,500 units. the initial level of water in the pool was 225 units. the pool was empty after 14 hours. the water was 2,600 units high after 4 hours.