Why do units need to be specified for an answer to be complete?

What linear function gives you f(0) 1 and f(1) 4? What are the steps followed in writing a number into scientific notation? How do you convert 2.5 km to cm? Write 0.375 as a percent? How many hours is 730 am to 115 pm? What is x plus 3x in its simplest form? What is 609634 rounded to the nearest 10000? How many hundredths are in 3 tenths? Sixty minutes is equivalent to what? What is the largest four digit number you can form with the digits 2 3 4 and 7 if repetition of digits is allow? What is ten thirds of nine? What do you mean by in line with each other? What is negitive 4 minus positive 2? What is 7 over 5 in its simplest form? What is the value of scalar product of two vectors A and B where value of vector A and B is not zero and vector product of two vectors A and B is not zero? Complete each pattern 21 49 77? When evaluating promotional claims it is important to a do your own research c determine if there are other possible solutions b ask if it makes sense d all of the above? What number divides equally into 34 and 51? How many times can 10 go into 16? A multiple of 27 that is between 280 and 300?