500am to 300pm how many hours?

Is a prism triangle or square? What are the prime factors of 20 and 30 no factor is repeated? If two pyramids are similar and the ratio between the lengths of their edges is 4 to what is the ratio of their volumes? Is 1 half an equivalent fraction? What does the term extirpated mean? What is the LCM of 63 81 147? How many meter is 1 linear meter? How many apples are there if there are none? What numbers divide into 277? When did the 50p come out? What is square footage of a 9 X 24 room? How many paperclips will it take to make a kilogram? Is 5 liters of water bad for you? What is the angle of 166 degrees? 6 11 16 21 26 31 36? What is the answer for 210t-68 equals 56t plus 1164? How do you divide by subtraction? How every integer is a rational number? What is sine of 225? What present out of 100 numbers have digits whose sum is 5?