Answer:
<em>Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE.</em>
Explanation:
<em>"</em><em>serverPc </em><em>izz </em><em>serverPc</em>
<em>Desktop</em><em> </em><em>Pc</em><em> izz</em><em> </em><em>Desktop</em><em> </em><em>Pc"</em>
Answer:
$2.40
Explanation:
the unit electricity bill is kilo watt hour.
The 60-watt light bulb has a 400 hour life expectency means it will consume
60×400/1000 = 24 KWh units of electricity. Let us suppose each unit of electricity costs is 10 cents.
Then 24×10 = 240 cents = $2.40
The first one and last one
