Will someone me with this question plz?

Select the correct answer and solve for y

How can you find the magnitude of a vector, v = < x, y > , where the horizontal change is x and the vertical change is y?

If log_3(x)=4.5 and log_3(y)=3, what is log_3(x^2/y)? a. 3b. 6.75c. 6d. 1.5