This histogram shows the number of shoppers in various age groups at a clothing store. How many shoppers are at least 30 years old?

5 shoppers

7 shoppers

13 shoppers

17 shoppers

Histogram titled Ages of Shoppers. Histogram with vertical axis labeled Number of Shoppers and ranges from 0 to 10. The horizontal axis labeled Age and has 4 categories, one for each of the four bars. Bar 1 labeled 10 to 19 has a height of 6. Bar 2 labeled 20 to 29 has a height of 7. Bar 3 labeled 30 to 39 has a height of 4. Bar 4 labeled 40 to 49 has a height of 1.