Um guys thanks for the help but what about number 5 and 6?

5. To find the product of x and 5 , which property allows us to perform the following step?

x • 5 = 5x

6. When adding 2 to the sum, 3 + x , which porperty allows us to perform the first step below?

2 + (3 + x) =

(2 + 3) + x =

5 + x

Please Help!!!!!!!!!!!

Thanks a lot!!!!!!!!!!

0 could be a answer but that is not the answer I looking for. But thanks anyway! I guess.......

thanks a lot!!!!!!!!!!! :D

9,835 / 12 = 819.5833333333333

45 + 4,875,837 = 4,875,882

thanks a lot Cphill!!!!!!!!!!!!!!!!