As Earth cooled, an atmosphere formed mainly from gases spewed from volcanoes. It included hydrogen sulfide, methane, and ten to 200 times as much carbon dioxide as today's atmosphere.
Legal tender refers to the accepted for payment of all debts, public or private and each country has its won specific type which is in terms of the currency being used.
<h3>What is Legal tender?</h3>
This is a form of money recognized by the law of a government as a means of payment. For example dollars and cents is the legal tender for America and is used as a form of exchange for goods and services provided in the market.
They can also be used in the payment of debts or other financial obligations in the country at a specific point in time and is the currency which has legal backing to be spent. This is therefore the reason why legal tender is regarded as the most appropriate choice.
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Based on the excerpt, President Jimmy Carter made reference to the meeting he had with various leaders on the energy crisis.
<h3>What is a state crisis?</h3>
A state crisis can be defined as any form of event that has the potential of causing an unstable and dangerous situation across a country, thereby, adversely affecting the people that are living within it.
In this scenario, the United States of America had an energy crisis while Jimmy Carter was the president. Thus, President Jimmy Carter gave a speech on the 15th of July, 1979 to address the citizens of the United States of America on their energy crisis through a live TV broadcast.
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Answer:
so he would have to work at least 7 hours
Explanation:
20*12=240
400-240=160
160/24=6.666