Answer:

Step-by-step explanation:
the 6th power of 10 would be 10^6, then you'd multiply it by 3 which would make it 10^6*3
you could then simplify it and say 10^18 (multiply the exponents [6 and 3])
It's C.......................
Use the photo Math calculator the answer would be on their
Answer:
B.) 
Step-by-step explanation: