84 is the median of the numbers
In order to subtract fractions, you need the denominators (bottom number) to be the same.
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-0.25 would be -25/100 which can be reduced to -1/4
It should be 35, if that is an answer choice.
One could analyze sources that were created by experts. In this case, you should look for a source that shares the same main argument, which is that people should pay for things that they own. People with credentials are credible (for the most part), and can be trusted. If experts have the same ideas and opinions in their respective fields, your thesis can be verified.
