Which number is a zero of the function h?

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

What is the inverse of f(x) = 6x -24

Traffic on saturday, it took ms. torres 24 minutes to drive 20 miles from her home to her office. during friday's rush hour, it took 75 minutes to drive the same distance. a. what was ms. torres's average speed in miles per hour on saturday? b. what was her average speed in miles per hour on friday?