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?
let n = number of dolls

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

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