Answer: 
Step-by-step explanation:





Answer:
It should be the last one, She made a sign error when multiplying.
Answer:
13/19
Step-by-step explanation:
To find the reciprocal, flip the number.
The reciprocal of 19/13 is 13/19
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Answer:
Look I’m not an expert in math but here it is: 7.4
Step-by-step explanation:
Or in fraction form 37/500
Answer:
The slope is -1
Step-by-step explanation:
It's decreasing which means it's negative and it decreases by 1 every time x increases by 1.