Why are square nuts rounded?

What is 2x plus 5y plus 9x? What can 96 and 100 both be divided by? What is 62.25 inches in feet? How do you write 1.0001 in word form? How many proper nouns are in edward found 5 quarters and 3 dimes? What is 25 percent of 179.99? What is 0.3 x 0.4? How fast do you have to run to get an eight minute mile? If a brick weighs 9 lbs and one half brick how much does one half brick weigh? What is the slope 2x plus 3x plus 6 equals 0? What percent is equivalent to 1.5? Is 42 a perfect number? Why is Number is shortly written as No? How can you tell that the line segment connnecting the points is vertical without graphing the points? What is the prime factorization for 2865? If X persons did Y units of work in Z days then the average daily output of each person is represented by? What is the GCF of 14 38 42? What year first sold? What chart shows the relationship of each part of a data reference to the whole? What is 124 written as a power of a number?