The mean is the average of the set. While the mode is the most common number and the median is the middle number of the data set. Hope this helps!
Do 2/3 and multiply the numerator and denominator by 3 (so the denominator will be 9) and u will get 6/9
:)
<span>17 protons and 20 neutrons add up to a molecular mass of 37</span>
3x(6x-1)+4(6x-1)
(3x+4)(6x-1) is the answer