Answer 1. in the month of october, the population of a species of fish in a river increased by a factor of 1.05 every day. the function below shows the number of fish in the river f(x) after x days: f(x) = 100(1.05)^x which of the following is a reasonable domain for the function? 0 ≤ x ≤ 100 0 ≤ x ≤ 31 all positive integers greater than 100 all positive integers less than 100 2. an expression is shown below: square root of 18 plus square root of 2 which statement is true about the expression? it is rational and equal to 3. it is rational and equal to 4. it is irrational and equal to 3 multiplied by the square root of 2. it is irrational and equal to 4 multiplied by the square root of 2.