Determine the largest open intervals of the domain over which each function is (a) (b) (c) increasing, decreasing, and constant. ..... A. The function is decreasing on the interval(s) U (Type your answer in interval notation. Use a comma to separate answers as needed.) B. The function is never decreasing.

Mrs. Davis has 125 quarters to use at the laundromat. Each load of wash she does costs her $1.75. The total cost for her to do laundry is a function of the number of loads she does, x. Which is an appropriate domain for the function? A all integer values of x such that 0 < x < 72 B. all integer values of x such that 0 < x < 71 c. all integer values of x such that 0 < x < 18 D. all integer values of x such that 0 < x < 17