What is 11-15-2-15?

What is non terminating non repeating decimal? If you were born on the 14th day of January 1998 how old would you be? What goes into 21 and 8? Can a quadratic have three solutions? What does 45 55 equal? Which name gives the most specific description to the number 7? What year do you have to be born in for the age of 13? Can a thermal conduction resistance be applied to a solid cylinder o sphere? What is the roman number for 139? What is the LCM of 2 12 and 24? 0.10mm is equal to how many microns? What is difference in math terms? What is the unit rate of 150 in 6 gallons? What is 31 over 100 in percentage? What shape is a construction cone? What does the letters PID stand for? What is 24 multiplied by 13? What is a set of all input values of a relation? What has one curved face and no edges? What is the two thirds of 10?