The prefix "milli" simply means "one thousandth", therefore, 7 millimetres is 7 x 0.001 meters, or 0.007 meters.
7 hectometers=700,000 millimeters
7 centimeters=70 millimeters
There are 0.7 centimeters in 7 millimeters. 7 millimeters x 1 centimeter/10 millimeters = 0.7 centimeters 1 centimeter = 10 millimeters
8 centimeters 7 millimeters is the same as 87 millimeters. Since there are 10 millimeters in a centimeter, 8 centimeters is the same as 80 millimeters.
The area of a square with sides of length 7 mm: 7 millimeters times 7 millimeters are 49 square millimeters.
There are no kilometers in 7 millimeters. A kilometer is far bigger that a millimeter. 1 kilometer = 1000 meters = 1,000,000 millimeters
7,000,000 millimeters
7 decimeter = 700 millimeters so 7 decimeters is larger
700,000 millimeters
There are 1000 millimeters in a meter.
Centi in Latin means 100, so if millimeters is your base [1] then you will have 100 millimeters in 1 centimeter. So in your case 7 millimeters are equivalent to .07centimeters.
You haven't said what the 7 eighths are 7 eighths of, and that's going to make all the difference in the answer. -- If it's 7 eighths of a millimeter, then there are 7 eighths of a millimeter in it. -- If it's 7 eighths of an inch, then there are 22.225 millimeters in it. -- If it's 7 eighths of a foot, then 266.7 millimeters. -- If 7 eighths of a meter, then 875 millimeters. -- If 7 eighths of a mile, then 1,408,176 millimeters. -- If 7 eighths of a day, or 7 eighths of a pound, or just plain 7 eighths with no unit, then none.