What is the value of x in the following equation?

7/8x=42

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

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)