Answer:
-45x^11
Step-by-step explanation:
-5x^6 * 9x^5
Multiply -5x and 9x together:
-45x
Remember when multiplying powers, you add them together, which leaves you with:
D.6
10x+30=8x+48
2x+30=48
2x=18
x=9
I think It is the second one
I hope this helps:)
5,000