Bill will do none, because he is the teacher. Helena will do the math problems
Answer:
generate is cause (something, especially an emotion or situation) to arise or come about.
Explanation:
They are sometimes treated differently and physically appear different from most people. Also, they have dissimilar religious outlooks and differing beliefs on how to live their lives.
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The Jevons paradox occurs when technological progress or government policy increases the efficiency with which a resource is used, but the rate of consumption of that resource rises due to increasing demand.
c. telegraph came before the telephone obvi and the rest are not communication. telegraphs could be sent over seas