How would I set these up to find the values of the variables? I know that I need to set them equal to each other but I don't know how.

Two parallel lines are crossed by a transversal.what is value of x

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.