Examples of scalar in daily life?

What is 7.986 rounded to the nearest hundredth? What does 'how often does' mean in a math question? What is the mass of one mole of Al2O3 if aluminum has an atomic number of 13 and an atomic mass of 26.98 and oxygen has an atomic number of 8 and an atomic mass of 16.00? How do you spell 899? Is greater than in integers means addition? How much chords can there be in a circle? What is the function of homosaccharides? What are the importance of compound interest in our daily life? How many cubic feet is 8 ft x 4 ft x 2 ft? How many trees are being destroyed in a day hour minute month second or year? What is two and one-fourth as a decimal? How old anyone had borned in 1998 year? Is 12 an integer number? What is area 16.8m x 50cm? Two lines can both intersect a line and form perpendicular lines draw a picture to explain? What is the root of 2.07 rounded to 2 decimal places? What does negative 2 and positive 2 equal? What are the three kinds of leadership needs faced by all problem solving small groups? How do you make 30.6 into a fraction? What is 5x plus 16?