Answer:
40 shirts
Explanation:
I'm not sure what the question means by "A store has 7 shirts", but I will answer it through my interpretation.
1. It is given to you that the last dozen (12) shirts were sold each for $14, meaning in total it was:
12 x $14 = $168.
2. Since all the shirts were sold for a total of $616, then the remaining shirts were sold for:
$616 - $168 = $448
3. To find the number of shirts this is, divide the remaining amount by the cost for each shirt:
$448 ÷ $16 = 28
4. The total number of shirts sold would be the last dozen (12) plus the remaining shirts (the shirts sold before the last dozen):
12 + 28 = 40 shirts