Answer:
Step-by-step explanation:
Number of spoons of nut taken in first week = 2*7 = 14 spoons of nuts
Number of spoons of nuts taken in w weeks = 3*7*w = 21w spoons of nuts
Total spoons of nuts = 14 + 21w
Average = Total spoon of nuts/ Total days
[tex]=\frac{14+21w}{7+7w}\\\\=\frac{7*(2+3w)}{7(1+w)}\\\\=\frac{2+3w}{1+w}[/tex]