How many hours is 830am to 530pm?

Data that is more than 1.5 times the interquartile range from the quartiles? What are the measurement of an obtuse angle? Which direction would the graph of yx plus 2 plus 3 open? What is value of y when10 divided into y equals y? Ways to write 100000 in Greek? Formula of rectangular prism? Who first used the decimal point in the present form? What is 76 plus 19? What is the limit in kilograms? What is the code for power line 3? What is half of a rectangle called? Which measures a bigger heat change 1 degree C or 1 degree F? What shape has 2 right angles only 1 set of parallel sides and no lines of symmetry? Books and divisions of the New Testament? If you need 1 pint per 5 gallons how much is needed for 2 gallons? What is 48463522 to the nearest ten million place? Does it take the same amount of force to move a heavy box and a light box up the same inclined plane? What is a shape with a 90 degree angle called? What is surface area of a cuboid 8 x 5 x 4? What is normal value for SAO2?