Answer:
The sentence which could effectively be placed in a summary of Chapter 4 of Wheels of Change because it expresses a key idea objectively is:
A. In the 1880s and 1890s, female bicycle racers faced a variety of opponents, including males, horses, and an occasional dog.
Explanation:
Among the options provided, letter A is the only presenting information objectively, that is, without the interference of opinions, feelings, or biases the author may have. That is not the case with the other options. Option B speaks of doing something "foolishly"; option C speaks of preference and of "kind people"; and option D speaks of supporting those woman because of their bravery. Thus, options B, C and D express opinions and feelings, which are completely subjective.
Answer and Explanation:
Hello. You forgot to mention that this question is about "To kill a mockingbird."
The social norm of the time that causes one of the conflicts to which Scout is related is the standard of behavior established for women. This is because Scout has a rough-and-tumble, tomboy behavior, which comes completely out of the sexist standards that women should follow in order to be accepted in society and to be well regarded, to be respected. History suggests how girls were stifled by these standards and how it impeded women's free thinking and positioning in society.
In the section "Pathology Indicates Manner of Communication," Snow explains the nature of cholera and argues that the study of the disease will help scientists understand how it spreads and how it can be averted. He combines his knowledge of the characteristics of the disease with his clinical experiences to build his argument.
He continues to build his case through other sections of the essay. For example, in "Cases Proving Person to Person Transmission," he provides evidence from other cases to support his theory that cholera is spread between people. Then, in another section, he maps an outbreak that occurred on Broad Street, connecting the affected individuals to a single water pump. After making these supporting arguments, he arrives at his main argument that cholera spreads through contaminated water.
In sum, Snow discusses a different concept in each section; these sections complement one another to build a complete, effective argument. The section labels help the reader follow Snow's line of thinking by mapping the main points.

So we need to find a common denominator, or else we can't do anything with these fractions.
We cross multiply;
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