In 3/5 divided by 3 = 1/5 the _ is a unit fraction

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)

Which equation is represented by the graph below?

If wxyz is a square, which statements must be true? plz < 3