What is a quwinsidence?

What is the centre of a circle and its radius on the Cartesian plane when its equation is x squared plus y squared equals 12x -10y -12 showing work? How do you write 3.1 as a mixed number? What is a 4 sided shape that has two obtuse angles? How thick is 40 mm? Convert sq mm into sq meter? Robert bought a used car for 1500.00 if the sales tax is 5 what will be the total to pay? What is 2 fifths has a decimal? How many Km equal to 250 mile? What is the best way to teach multiplication to a child? What is the value of a square nickel? What is the answer for 2 over 5 and 10 over 25? What are 2 composite numbers whose prime factors each have a sum of 18? How many square meters are in a circle 1 meter in diameter? How do you write 4 in the millions place a 6 in the ten thousands place and a 9 in the ones place? What word describes scales made of half and whole steps? How many times does 'in the beginning' appear in the Bible? How do you solve 9x plus 2y equals 0 and 3x-5y equals 17 using the linear combination method? What is a flat surface with two dimensions? What is 3427000000000 in scientific notation? Is adequate an adverb?