Answer:
Helena types 208 words in four minutes.
Explanation:
If Helena types 52 words in one minute, then she will double that in two minutes, typing 104 words. If she types for four minutes, she types for two minutes, and then another two minutes, which can be written as 104+104, and 104+104=208. Therefore, Helena types 208 words in four minutes.
<span>JD Salinger in Cather in the Rye</span>
It usually depends on what English teacher / class you have. I think you have to do (Last name, First Name, Book Name, City (if given), and Year) or maybe less depending on what your teacher ideally wants. Your teacher should clarify this and if they complain about this format, blame them for not teaching their preference to you. The period probably would be after the parenthesis, at the very end. Hope this helps
Answer:
Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat. Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents.
