HELP HELP HELP PLEASE ITS DUE TODAY YOU CAN DO EITHER OR BOTH ( I need both but any help is accepted with thanks and graditude) WILL GIVE BRAINLIST TO WHOEVER GETS BOTH (PLEASE PLEASE PLEASE ANY HELP)

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

Determine the common ratio and find the next three terms of the geometric sequence. 10, 2, 0.4, a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032 select the best answer from the choices provided a b c d