What is the coefficent of 4 plus 5n?

Which number rounded off 489 000? When the angle between two vectors is equal to zero? how many time dose 15 go in to 32? How does march of dimes hepl people? How do you convert percent into decimals and a fraction? Which type of ladder is a non self supporting has one section and has a fixed length which is determined by the length of the side of the rails? How many gallons is 1000 pounds? What does ml xii stand for in roman numeral? Which space figure has single vertex? How is the 2000 written in Roman numerals? 850850 plus 1766? What does bismuth used for and what does it mean? Who were mathmatichans? How many equal factor 10x10x10x10 equals? Why are the mean median and mode important? What is the angle of incidence of a reflected wave bounces off a mirror at an angle of 65 degrees? Distinguish between statistics plural and statistics singular? What is the answer to nine twentieths as a decimal? What is 0.000008 written in scientific notation? Does 10000 equals 1 million?