Find the sum , * * , of the geometric series given $ 1 = 6 , 2 - 18750 , and lt; = 5 .

Find the sum,Sn,of the geometric series given a1=6,An=18750,and r=5. Remember to use the formula

18.Find the sum , * * , of the geometric series given $ 1 = 6 , 2 - 18750 , and < = 5 . Remember to use the formula* * * - 1 - 1\21 - day\DETER = " 5 0OS, = 39 010^OSX = 3750)OS , = - 93749\18 Of 20 -