Collin did the work to see if 10 is a solution to the equation StartFraction r Over 4 EndFraction = 2.5.StartFraction r Over 4 EndFraction = 2.5. StartFraction 10 Over 4 EndFraction = 2.5. 2.5 = 2.5.Is 10 a solution to the equation?Yes, because 10 and 4 are both even. Yes, because if you substitute 10 for r in the equation and simplify, you find that the equation is true. No, because 10 is not divisable by 4.No, because if you substitute 10 for r in the equation and simplify, you find that the equation is not true.