Which problem demonstrates the associative property? Group of answer choices

(5.2 + 3.1) + 1.9 = 5.2 + (3.1 + 1.9)

5.2 (3.1 + 1.9) = (5.2 • 3.1) + (5.2 • 1.9)

5.2 + 1.9 + 3.1 = 10.2

All the above

hi,

3. 12.15, you are correct.

4.2.01, your first digit is correct,

hope this !

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.