What is 2 thirds plus 1 sevenths?

What is the percentage of dogs surviving? Is a line imaginary? What is seven ninths divided by one ninth? What happens to the graph of y equals x when the equation changes to y equals x 9? What is 7tenths minus 1third? How many sides does a polygon have when only a compass and straight edge are used? 60mph equals how many feet per second? In comparing a desert to marsh witch statement is not true? How do you find the surface area of a cylinder? If you have four nines using only these four nines arrange them to total one hundred but you can only use one nine once? Find the sum of the whole numbers that are divisble by three and which lie between 100 and 200 Please can the answer be as the teacher would expect to see it written down on a assignment Thanks? What do you think of when you hear the word numbers? Why Thermoplastic can be form into different shapes with infinite times? Should 'algebra' begin with a capital A? What are three numbers that are relatively prime to 210? 24 ft equals yd? What the mathematical term for HCF? What triangle measures 60 60 60? How many halves are in two? Are there any conditions under which the sum of two squares can be factored?