Answer:
6
Step-by-step explanation:
1)6-6=0
2)2(6-6)
2*0
0
x=6
Slope =
The percent markup is 62.5%
The work is provided in the image attached.
hello since we are simplifying 15^-3*15^6 all we have to do is add the exponents when we add them we end up with an answer of 15^3
