In general, how does the growth of y=4x compare to the growth of y=4x

What is the absolute value of the complex number -4-sqrt2i

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?

On average, a continental shelf drops 0.12 m per 100 m. at 22.5 m from the shoreline, how much distance has the continental shelf dropped?