Computing an Average

[mjcruzz]

I can't seem to understand how to solve this problem. Please help

 

[Country Boy]

The average of 3 numbers, a, b, and c, is \(\displaystyle \frac{a+ b+ c}{3}\). With the given example (3+ 4+ 8)/3= 15/3= 5.

You need "avg_sales= (numsales1+ numsales2+ numsales3)/3"