How do you write the decimal 216.9805 in words?

Do the equations 2x plus 4y equals 9 and -4x-8y equals 4 have a solution? What are all the prime numbers 0 to 100? What color does black and gray make? What is the ratio of 48 percent and 24 percent? What is does DX stand for? What is the slope of any line parallel to the line formed by the equation 45x plus 9y equals 36? Why do pet rats have black lines on their teeth or is this one the only one Does it need to see a vet? What is 8 over 100 in lowest terms? What is the formula for a prepositional phrase? How do you write 56.105 in word form? When a warm object is brought near a cool object the cool object will blank? How do you convert a nominal value to a real value? How much cm in 1cbm? What is 2x plus 3y equals to 12 in slope intercept form? How many times can 7 go into 16? How long will it take 27 grams of plutonium-240 to decay to 9 grams? What is the formula to find the area of parallelograms? What does 9 inch 12 inch and 15 inch locker sizes mean you were looking for locker shelving and there was a shelf that said it could be adjusted to fit lockers of that size? How many days would it take you to spend 1 000 000 if each day you spend 1000? What is the Hindu-Arabic number for cc xcvii?