\sum _ { n = 1 } ^ { \infty } ( \frac { 1 } { 5 ^ { n } } + \frac { 2 ^ { n } + 3 ^ { n - 1 } } { 5 ^ { n } } )∑ n=1
∞
​
(
5
n

1
​
+
5
n

2
n
+3
n−1

​
)​

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.