I cannot suggest anything other than the set of real numbers here, but maybe someone else can provide a better answer. As long as you increase or decrease x (which is a real number) then you will get a real number, or the infinite set of real numbers.
Answer: $21
HOPE THIS HELPS
CAN U PLEASE GIVE ME BRAINLIEST
The water bill was 1/5 of the total, so was 0.2*$540 = $108.
