Between 9:00 a. m. and 10:20 a. m., 18,000 visitors entered the Family Fun Amusement Park. Between
9:00 a. m. and 10:20 a. m., an average of how many
visitors per minute entered the park?

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]