Answer: 75/7 or 10.71 (rounded)
Step-by-step explanation:
Mean = Average
To find the average you should add all the numbers together and then divide it by the amount of numbers.
In this question, the formula is 
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The list of the first 7 odd prime numbers:
3, 5, 7, 11, 13, 17, 19
Now, add them together
3+5+7+11+13+17+19=75
Divide the sum by 7
75÷7=75/7=10.71 (rounded)
Hope this helps!! :)
Please let me know if you have any questions
The first option,
both have to be negative, because they were originally both part of the one fraction, which was all negative.
Answer:
120-(30+48)= 42
Step-by-step explanation:
Ok so what we have to do is 4+7+9=c
4+7=11
11+9=20
c=20
your answer is 20