What is 7 tenths minus eight fifteenths?

What is 10 of 80000? What is the rule for this patteren 6 21 66201? How do you write 2500 million in numeric form? The product of two or more numbers is a? How many weeks are children off from school in UK a year? How do you write out 1 billion 900 and 39 million dollars? How many 20 bills makes one million? What is a number with more than two prime factor? What is the decimal for ten and eleven thousandths? How do you find number of handshakes at a party? What is the definition to set in math terms? What does 30 m equal in centimeters? What is 0.000000253 in scientific notation? How do you write 17million in numbers? What is the measures of each angles of the dodecagon? How many hours is 5am to midnight? What is 34.9 in percent? Is 5 over 12 bigger than 5 over 6? How many syllables is in chop? Can you give 100 examples of abstract nouns with suffix?