What is the symbol of seven -elevenths?

What is 4c 1 -(5 2c)? Is 2 over 9 bigger than 1 half? Nicolas Copernicus did He invented a new method of mathematical calculation called calculus? Is a regular triangle symmetrical? Is 5 x 4.5 the same as 5 x 115? How many eigths are in three fourths? IS 500000000 EQUIVALENT TO HALF BILLION? What is longer than a meter? How do you evaluate the performance of NPO? How do you find the sequence of nth term answers? What times seven equals 135? How many twelves are in 1000? What does the 5th Amendment mean? What is one half minus 4? Is 4.5 mL less than 0.45 L? Why does it not matter what point you use on a line to determine the equation of it? What does the expression big wheel mean? How many bottles of shampoo do women use annually? Is 32 an almost perfect number? HOW MANY 12x12 BRICKS DO i NEED FOR A 7'X7' BUILDING?