<h3>hello!</h3>
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Let's simplify the expression:-

Multiply 3 times 1 and 1 times 2:-

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<h3>note:-</h3>
Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I'll comment and/or edit my answer :)
Answer:
mean - 12.5
SD - 12.0
Step-by-step explanation:
<span>5.17490 rounded to the nearest thousandth is 5.175</span>
Answer:
It is -7.
Step-by-step explanation:
Since x = -1, we can replace the x with -1 to get: -3 - 4 which is -7.