What is the value of a1 of the geometric series 12(-1/9)n-1

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1