What is the half of 31?

What is the sum of two even numbers? How do you round to the nerest whole number with decimals 1.27? What is the supplement of 4 degrees? How many planck lengths in one foot? How do you draw circle divided into fifths? What is 16 minus 5.2? What number times itself 3 times gives you 750? What is the 5 books of psalms? What multiplied by itself equals 121? What is thirteen million in numbers? How do you make 40 with four 4? What is 111380.5 rounded to the nearest cent? What numbers mean or stand for murder? What is 10 percent of 120 dollars? What is 18 percent of 72? What is fifteen percent of sixty thousand dollars? In the diagram below lines and are .? What does 2x plus 9 equals 10 equal? What is the slope of the line givin by the equation y11x? What is 0.015 round to the answer to the nearest hundred?