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.
The cardinality of a set A is defined as its equivalence class under equinumerosity. A representative set is designated for each equivalence class. The most common choice is the initial ordinal in that class. This is usually taken as the definition of cardinal number in axiomatic set theory.