What is 3 fouths of 840?

How do you calculate critical points of derivatives? What number is xi xxvi mmxi? What is 400 divisible by? What genotype color is R' R'? Which metric unit is closest to a yard? How do you write 327.46 in expanded form? What does this mean a way of being clever? How do you factor 5x2 plus 20? Write down in figures twelve thousand and eight? How many times in the Bible does God say call unto you? When is future simple tense used? The sum of the ages of Art and Ben and Cal is 59. Art is 1 year older than Cal and Cal is 1 year younger than Ben. WhoIf anyone was a teenager 7 years ago? What does number 50 represent? What is the difference between Babylonian numerals and Hindu Arabic numerals? What is the plan 10-86? What is the present tens of taste? What are rules in changing non terminating but repeating decimal into fraction? How can you determine the y- intercept if its not given directly? Need to make a sentence with the word arduos? How many half steps are there between c sharp and c natural?