Which of the following is not a geometric sequence?
1-3,9,-27,81
-7,-5.8,-4.6,-3.4,-2.2
4
0 -100.-20.-4.-
5
2.8,6.72,16.128,38.7072

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.