Use the stem-and-leaf plot of Monthly Sales Goals to answer the question that follows.
Monthly Sales Goals (in thousands)
Stem Leaf
2 1 2
3 5 5 6 8
4 1 7 8 8
5 4 5
What is the mean monthly sales goal?
$40,000
$35,000
$39,500
$48,000
I don't know how to even start this problem.Help please?