25 pts HELP Find the sum, if it exists, of the infinite geometric series related to the infinite geometric sequence described by a_(n) = 12(0.2)^(n - 1)

This infinite geometric series diverges.
s=15
s=.25
s=9

Which statement is true about the local minimum of the graphed function? over the interval[-4,-2], the local minimum is 0. over the interval [-2,-1] , the local minimum is 25. over the interval [-1,4], the local minimum is 0. over the interval [4,7], the local minimum is -7