Sam is proving the product property of logarithms.

step

justification

log, vn)

given

log, (6* 3")

substitution

which expression and justification completes the third step of her proof?

; power rule of exponents

log,6"), subtraction property of exponents

olog, (6**), power rule of exponents

division property of exponents

I'm not sure what the answer is, but it's not a) ; power rule of exponents. I put this and got it wrong :)

Here's what I think it is, though: c) ; power rule of exponents

I think it's this one because when you multiply exponents, you actually just add them, unless one of them is outside a parenthesis, like this: , in which case you would actually multiply them. Also, they never mentioned subtraction in the lesson, so I don't think it's b.

Hope this helped! Let me know if C was the right answer :)

3rd box is the answer

step-by-step explanation:

687.09 dollars       happy now

step-by-step explanation: 6870

1857 times .63 equals 1169.91 subtract that from 1857 you get 687.09