Question

the inquisitive student counted the number of bricks in each building in her neighborhood.
bricks per building

how many buildings have between 21 and 30 bricks?

buildings

Explanation:

Step1: Identify the bar for 21 - 30

Look at the bar graph, find the bar corresponding to the "21 - 30" number of bricks category.

Step2: Read the height of the bar

The height of the bar for "21 - 30" (the y - axis represents the number of buildings) is 10 (from the graph, the y - axis scale: 0, 10, 20, 30, 40, 50, 60, 70; the bar for 21 - 30 reaches up to 10).

Answer:

10