15,677 would become 20,000. If the number were lower, it would've became 10,000. Hope this helps. :)
Find the slope, m, of the line whose graph contains the points (1,2) and (2, 7). ... What does it mean if the slope, m, is negative in y = mx + b?
If you multiply 9 x 3
=27
And multiplying the 10's means that the exponents need to be added
So the answer would be...
27 x 10^8
