Answer:
yes it's true because 3 groups of 8 is 24
-19
Explanation: they go back in intervals of -3
Let's factor the top and the bottom.
Top factors 4x + 20 = 4(x + 5)
Bottom x^2 + 2x - 15 = (x + 5)(x - 3)
The gcf is the largest value that will go into both the top and the bottom. In our problem the ONLY thing that will go into top and bottom is x + 5 so that is your GCF. (c)
35%
---- Than cross multiply with ---- = 24500
100% 100 --------
100
Which ends up to be 245.