Can someone help me will give brainliest if correct

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

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)