What are five parst of leteriture?

Which number when 1.divided by 9 gives remainder 8 2.divided by 8 gives remainder 7 3.divided by 7 gives remainder 6 4.divided by 6 gives remainder 5 and so on till it is divided by 2 and remaider 1? What does 12x squared plus 18 divided by 3x squared plus six equal? 3x plus 10y equals 7 -8x - 4y equals 17? Is 90 percent greater or less than 99.9? What number is the ones digit three times the tens digit and both digits are even? Is 5 decades greater or less than 48 years? 2 is 20 percent of what number? What is the function of a spermatozoon? What are the different types of quadratic equation? How can you use a segment in a circle? What does the abbreviation 5 C in a D stand for? What is the roman number for 249? -28 divided by -14? What does haphazard mean? 0.86 in percent? what is true about 1 bit? How many mph is 7.5 km per second? How do watergaps form? What is pi radius and diameter? What are the different ways of organising data that has been found from research?