Last attempt on the test, i’ll mark best

Answer question above and explain each step : )

The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1