What are the answers 1-9

What is the pattern in the values as the exponents increase?

This question awards 100 ! i really don’t want to fail i will also mark you !

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)