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Why does 15 not belong in the number series of 15 2 8 13 16? Juan can paint a room in 4 hours less than Pedro. Working together they can finish the job in 2 hours and 40 minutes. How long would it take of each of them to do the work alone? What is 8 percent of four dollars? What is ten percent 1124? How do you make nano composite? What is the equation passing through the point 3 -4 which is perpendicular to the line 5x -2y equals 3? What is bigger 13 fifteenths or 22 twenty fifths? Who many centimeters would be 60 milimeters? How many syllables are in the word hour? Why dispacement can be negative? What is multiply 6 by 3 the answer? What is 60 percent of 15L? What is the mean of standard normal curve? Parallel line segments are 2 line segments that are parallel. They never touch and they do not go on forever. Parallel lines do go on forever because lines go on forever. I think I'm right. Am I? What is the square root of 5 times the square root of 2? Why people used angles in their daily life? Do I start with numerator or denominator when dividing a fraction? What is the difference from a graph that is noted (-) absolute value and ( ) absolute value.? What is meaning Payment by MT 760? What are four representations in a linear problem?