Answer
Stem and leaf plot.
Work Step by Step
First of all, you must sort the numbers.
10, 15, 15, 18, 22, 25, 28, 35, 36.
Create a key for your Stem and leaf plot, which in this case, I will use
$2|2 = 22$
Create a stem and leaf plot and on the left side, put
$1$
$2$
$3$
This represents the tens place.
On the right side, put the ones place of each number on the side of the appropriate tens place.
