Types. Medicare is a form of primary insurance coverage. When individuals 65 or older with Medicare incur medical expenses, the doctor or hospital bills Medicare first. Medicare pays all the bills up to its maximum coverage limit.
The Roman numeral system works by having separate symbols to represent different numbers but unlike your system there was no symbol for zero.he Roman numeral system works by having separate symbols to represent different numbers but unlike your system there was no symbol for zero.
Although Roman numerals came to be written with letters of the Roman alphabet, they were originally independent symbols. The Etruscans, for example, used ð  , ð¡ , ð¢ , â , ð , and â for I, V, X, L, C, and M, of which only I and X happened to be letters in their alphabet.rom the 14th century on, Roman numerals began to be replaced in most contexts by more convenient Hindu-Arabic numerals; however, this process was gradual, and the use of Roman numerals in some minor applications continues to this day.