Respuesta :

altavistard

Answer:

Step-by-step explanation:

If we multiply 7^2 by 7^8, we get 7^(2 + 8), or 7^10.  Thus, a = 10.

If we then divide this 7^10 by 7^4, we get (in the numerator) 7^(10-4), or 7^6.  Thus, b = 6.