HELP PLEASE

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)

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

New york is the 27th largest state in the united states. what percent of the 50 states in the us are larger than new york