Answer:
n=14
Explanation:
These ratios can also be written this way:
cross multiply and you get:
7x18=9n
126=9n
n=14
Answer:
Most people live outside the deserts.
Explanation:
could be wrong but thats what I would put.
Answer:
Explanation:
The main difficulty of barter system is the lack of double coincidence of wants. In a barter system a person who wants to exchange his goods must find some person who is willing to exchange his commodity with his commodity. Hope that helps!!!
Answer:
About an year.
Explanation:
If we could collect all of the energy of the sun that came to earth in one hour , the energy is enough for all of humanity's energy needs for one year. The humans used about 575 quadrillion Btu whereas each hour 430 quintillion Joules of energy is received from the sun by the Earth which is a huge quantity so by seeing the data we can conclude that about one hour of sun's energy is enough for about about one year for the whole world.
A a parrotfish eating coral on a coral reef
