Answer:
sewage and peak of mountain

The Correct choice is : C. <u>Solids</u>
Sound waves need a medium to propagate, and the most suitable medium for that is solids, where it travel the fastest or with greatest efficiency.
The answer is, introducing modern agricultural methods to an ancient culture.
The number of Jews migrating to the land of Israel rose significantly between the 13th and 19th centuries, mainly due to a general decline in the status of Jews across Europe. The Jewish settlers had two types of agriculture methods which were the cooperative agricultural community and the collective community method.
cooperative agricultural community was where members worked on individual farms of generally equal size and sometimes pooled labor as well as machinery and marketing, while the collective community agriculture method land and even tools and clothing were owned jointly, and all decisions were made by the community these methods were different from the ancient culture agriculture done in Israel.
Nolan spent $320. He spent around 40% of his money.
800-480=320.
320/800=0.4
0.4 x 100= 40%
hope this helps!