Is 6 and a half rational or irational?

If sally paints a house 4 hrs and john paints the same house in 6 hrs how long will it take to paint the house together? Is null set finite or infinite why? What three digit number divided with a single digit will result in a remainder of 9? What is half of and pound10.85? How do you use significant digits to determine how to report a sum or product of two measurements? What is fraction 102 250 in decimal form? A number that does not stand by itself it is attached to the variable? What does 5e mean in french? What kind of graph would be used to show the test scores of each student on a reading test? How is a triangle a trapezoid and a pentagon a like? If two numbers are prime what is the GCF? What is the sum of 4.28 and 2.15 when rounded to the 1 decimal place? What travels 300 million meters second? 1 American dollar is equal to how many cents? What is the area of Baratang? What is the definition of the area of a triangle? What can use any side as the altitude and base of a triangle? Is 720 g greater than or less than 7.2 kg? How many feet can go in to 12 yards? What is the definition of an face in math?