Jessica works between 12h and 18h per week at her part-time job. She earns $9.25 per hour. The function p(h) = 9.25h models the amount of her weekly paycheck for h hours of work. What is the practical range of the function?
a. all real numbers greater than 9.25
b. all real numbers
c. all real numbers greater than or equal to 0
d. all real numbers between 111 and 166.5 inclusive.

HELP