Find a mixture that will make the different the shade of green that is bluer

How do i do this activity, is appreciated

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

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)