Subtract the powers
c. 9-7 so 10^2
d. 8-1 so 5^7
I use edge also most of the answers come for this app all u have to do is copy and paste your answer hopefully this helps
Answer:
Step-by-step explanation:
When A and B are brought together then they repel i.e. A and B have same charge, either negative or positive
When B and C are brought together then they also repel. This implies that nature of charge on B and C is same
