13. 10-14
14.I can't see the whole graph, so you need to do it yourself. Add up everyone's age and divide by the amount of people on the graph. That will give you the average.
The square root of 12 is 3.4.
Your integers are 3 and 4.
I hope this helps!
The answer is 132. 132 is the original price. 80$ x 65% = 52. 80 + 52 = 132. So 132 is answer and original price.
$12.80 × 1.075 = $13.76
$13.76 × 1.15 =$15.82