Answer:
250
1250
6250
Step-by-step explanation:
ratio is 5
so a is 50 * 5 and so on
ANSWER
The correct answer is B

EXPLANATION
The given exponential expression is

We can rewrite this as,

We need to simplify to obtain a positive index, so we apply the following property,

This implies that,

This will finally simplify to,

Therefore the correct answer is B
Answer:
A
Step-by-step explanation: