What is the value of x

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

Use circumcenter theorem to solve for the given values

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.