Angle ABC and angle CBD are complementary. What is the value of x?

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)

Find the domain and range of the following function f(x) = 51x - 21+ 4

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.