Answer:

Step-by-step explanation:

The correct option is B.
Answer :The first one
Step-by-step explanation:
Answer:
e = 56
Step-by-step explanation:
Use cross multiplication.
28 * 14 = 7e
Simplify
392 = 7e
Divide each side by 7
e = 56.
Answer: The answer is C, 4 to the 21st over 5 to the 6th power.