Simplify 1/3 (9a+b) - 1/2 (4a+2b)

1/3(9a+b)−12(4a+2b)

Distribute:

=(1/3)(9a)+(1/3)(b)+−2a+−b

=3a+1/3b+−2a+−b

Combine Like Terms:

=3a+1/3b+−2a+−b

=(3a+−2a)+(1/3b+−b)

=a+−2/3b

Cwill be your correct answer

None of those are technically correct. 9.7 x 104 is actually 1,008.8, but if that answer was a choice, it would be that one. if you meant 9.7 times maybe a thousand or more or divided by 10 or more, than the answer choices would be correct, but other than that, they actually arent.