What does 999999999mean?

What is 240 plus 60? What is n- 1 over 5 equals 3 over 5? What is 20 percent of 5000 dollars? What does XL stand for inside a gold ring? How do you write quarter in number? What word can be used instead of maybe? What is 24 divided by 2 thirds? How would one convert 6 lb to ounces 16 oz 1 lb? The number of rays needed to make an angle? What is the LCM of 21 and 18? What is the interest on 6282 earning 9 percent for 9 months? How do you tell the age of a p Beretta mod 950 b 6.35? What is three sixths of thirty? If a hen and a half can lay an egg and a half in a day and a half how long shoud three hens take to lay three eggs? What is 3 times negative 1? What is bigger 5.6000 or 5.6? What are the first 5 factors of 8? What is 15 twentieths as a decimal? What does 10k cm stand for on a ring? I have a triangular table which has sides of 20 and 25 and 50 inches. What is the area of the table?