I'm not positive I know the answer, but I have a feeling that because it's asking that you select all that apply, there is more than just one answer.
x + 3 = 0
-3 + 3 = 0
So yeah, just basically solve them as individual problems. Just do additive inverse for each expression.
72 square feet
EXPLANATION: when finding area of a rectangle, multiple Length x Width and 6x12=72
Answer
3,4,5,5,6,7,7,7,7
Step-by-step explanation:
Answer:
The mean is the average of a set of data.
Example:
To find the mean, add up all of the numbers in the set and divide by the number of values that you added.
35 + 36 + 37 + 38 + 40 + 40 + 41 + 42 + 43 + 55 + 55 + 55 + 56 + 57 + 58 + 59 = 747
Then, divide by the number of values, which is 16.
747/16=46.68
646 is 190% of 340
Simply do the following,
1) divide,

2) multiply the above answer by 100

3) dock on that percent sign,

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I hope that helps you out!!
Any more questions, please just ask me!!
~ Zoey