How do you find the value of 7?

Is 83 a cube number? What is the volume of mg of water? What is the gcf of 117 and 351? How do you find one endpoint if you know the other and the midpoint? Is 82 in the 3 times table? How much a year is 13.80 dollars an hour? What is 40 divded by 66160? 3 over 10 as a percent? What is the LCM of 42 and 45? What number is 18 percent of 105? What are the factors on which hall coefficient depends? What 2 times what equals 66? Which 13 colony was once divided into east and west sections but reunited? What is the whole number that is more than 279? What is the answer for x to the second power plus three? What is the quotient of three sevenths? What technology was used in WW1? What is the nth term for -1 3 -5 7 -9 11? What is 680 rounded to the nearest hundred? What shapes has equal adjacent sides?