What percent is 13 of a circle?

What percentage is 7 8ths? What is 3c x d? What is the double 0.8? Why is it 18 not a square number? What is the smallest prime? What are three ways of writing three and one fourth in three different ways? What does complex fraction means? What is minimum number for a tiedown for any flatbed load? How do you say infinity in french? What is a sale leads defined as? What is a qualitative arguments? What is 40 percent of 600.00? How do you solve -24 equals 6a-15-5a? What is a 3 digit number that is even your hundreds and ones digits are the same and have a sum of 8 your tens digits is 2 less than your ones digit. What number am I? What is 6 times 7381? What is the difference in a one foot landing and two foot landing? How many composite numbers are there from -5 to 11? What fractions are equivalent to 8 out of 12? What numbers divide into 294? How do you write 1390 in Roman numerals?