Iwill mark brainliest!
which is an example of the associative property?

question 1 options:

x + 5 = 5 + x

(x + 3) + 7 = x + (3 + 7)

3 • (x + 5) = 3 • x + 15

if x = a, and a = 7, then x = 7.

Rose and andrew are financing $128,000 to purchase a condominium. they obtained a 15-year, fixed-rate loan with a rate of 5.05%. they have been given the option of purchasing up to four points to lower their rate to 4.81%. how much will the four points cost them?