Out of 21 students in a class three seventh are boys and four seventh are girls. how many are girls and how many are boys

Choose the more precise measurement. 26.4 cm or 8.39 cm

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

Apack of gum would be considered a(n) necessity luxury item small ticket item unaccountable expense