Use the Following Bar Graph to Find the Average Number

question 7

Short Answer

Use the following bar graph to find the average number of therms of natural gas used per month.

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Definitions:

Spinalis Thoracis

A muscle in the back that is part of the erector spinae muscle group, helping to extend and stabilize the thoracic spine.

Longissimus Thoracis

A muscle in the back that helps extend, rotate, and laterally flex the spine.

Serratus Posterior Superior

A muscle situated in the upper back that helps in elevating the ribs during inhalation.

Elevate the Ribs

The action of increasing the thoracic cavity volume to aid in inhalation, primarily performed by the intercostal muscles.