What is 2 thirds plus one fifth?

What is .40 times 80? What does it mean if the number written in scientific notation has a negative exponent? What week is the week of nov 1? Which is a constant in the expression six j minus one plus two k is it the 1 6j 2 or k? How many nos are there between 200and300 in which 9 occures only once? What is the scientific notation with the number 12000000? What is 45.248 x and 1231010 and 123115? Why did Pythagoras discovered Pythagoras theorem? What is the perfect standard normal distribution? Which is greater a circle with a circumference of 40.5 feet or a circle with radius 80 inches? How is the precision used in measuring the length and width of a rectangle related to the precision of the resulting area measurement.? Which number is greater than 0.23? What times what equals eight over two? Does zumiez do trade ins? What has 3 sides and 3 veritices? What is 35 over 54 as a percentage? How many millimetres are there in 3cm 2mm? What times what equals 1874? Can you give you some examples of categorical data? What is a number greater than 10 and a factor of 30?