Typical costs: 1  A standard portable restroom (non-flushing) rental typically costs $100 to $175 per weekend. 2  A handicap accessible restroom (non-flushing) rental typically costs $150 to $250 per weekend.  A fresh-water flushing toilet rental typically costs $150 to $375 per weekend.
Quick Answer. Q represents rational numbers because all rational numbers are a quotient. This means that each rational number can be expressed by a fraction with a denominator other than zero and a numerator that is a whole number. Whole numbers, fractions and decimals are all rational numbers.
In mathematical sets, the null set, also called the empty set, is the set that does not contain anything. It is symbolized or { }. There is only one null set. This is because there is logically only one way that a set can contain nothing. The null set makes it possible to explicitly define the results of operations on certain sets that would otherwise not be explicitly definable.