Answer:
metaphor
Explanation:
with a metapjor it is easy to express your self without a more direct or personal feeling. It also helps the reader to capture a bigger idea or expression.
The cow would be consuming 80 gallons of water during a hot day. If on any day the cow drinks 40 gallons on a hot day it drinks double the amount so you multiply them by 2 and its 80. I hope this answer can help you.
In order to make your ideas and support for your ideas of the argument you are claiming.