Which equations support the fact that rational numbers are closed under addition? select each correct answer.   3√5+√5=4√5 √10+(-√10)=0 1/2 +0.5=1 3√16 + 3√16=6√16

1/2 +0.5=13√16 + 3√16=6√16

Step-by-step explanation:

You can eliminate the equations that contain irrational numbers (√5, √10). Those that are left involve addition of rational numbers.

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!

Then just do it (lol)