How does a pie chart form conclusions?
a. plotting all of the observations.
b. showing a constant ratio with the trend line.
c. showing how data falls into categories with the regulative wedge size.
d. showing quantity by category.

Aballet student who learns with the of his instructor is demonstrating learning.

A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?