Help Solving quadratic equations with Square Roots mastery test but It's Edmentum so I think I need the right answer from someone who has taken it.

About 60% of the normal humanbeing's body weight is composed ofwater. how much of a 125 poundperson is water weight? f 72 pounds h 76 poundsg 75 pounds i 80 pounds

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0