9. The pressure inside a submarine increases as it dives deeper into the ocean. It exerted 25 pounds of pressure in the initial 1 m of its dive. Every metre after that, it exerted 20% more pressure than it did in the
previous metre. Use what you learned in sequences and series to solve these problems:
a) How many pounds of pressure are exerted by the submarine in the 9th metre? Round to the nearest
tenth.
(2A)