Question

The largest doll is 12 inches

tall. The height of each of the other dolls is 7/10
the height of the next larger doll. Write an
expression involving a power for the height
of the smallest doll. What is the height of the smallest doll?

Answer 1

let n = number of dolls

height of the smallest doll = 12" × (7/10)^(n - 1)