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.
Today we write out 99 in Roman numerals as XCIX because XC = 90 and IX = 9. Therefore it logically follows that XC+IX = XCIX as in the case of Hindu-Arabic numerals. But the R â¦ oman numeral system does not contain a zero figure for positional place value purposes.   The seven symbols used for Roman numerals are:-   M=1000, D=500, C=100, L=50, X=10, V=5 and I=1    Roman numerals are the numbering system that the Romans used.