Question

There are 4 Russian dolls. 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. What expression can be used to find the height of the smallest doll?

Answer 1

x= 12(.7)^x(exponent)
x is the doll you are on. For example if your looking for the height of the height of the doll after the 12 in. one then x=2 and so on

Answer 2

height of doll ÷ (7/10 of the height of doll)= size of the next doll

or
h÷(7/10)h = n