Given a sequence is defined by a first term of t 1 = 3, and explicit definition t n = 4 n − 1, find the 4th term of the sequence (i. e. t 4). Answers are:
A. 3

B. 11

C. 15

D. 171

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.