4 x 3 = 12
12 would be the answer
Answer:
The answer is "2.5".
Step-by-step explanation:

The pieces which does not achieve that specific weight either are below and above the average standard deviation of 2.5. The percentage of components not fulfilling their weight data is 1.1% using a Table of Z-scores.
42 degrees. Divide 105 by 5 and get 21 and then multiply it by 2.
7 3/4.
i got this by adding 1/5+2/5=3/4 and then 4+3 which are the whole numbers.