1. Option 4
2. Option 2
3. Option 2
4. Option 4 (not completely sure)
5. Option 2
6. Option 1 (not completely sure)
7. Option 4
8. <span>Isotopes are caused by different numbers of neutrons in the electron cloud
9. Not sure of the question
10. Positive charge
11. nucleus
</span>
Answer:

Step-by-step explanation:
when you raise an exponent to a power you multiply
Also since the terms inside the parenthesis are multiplied and not added, you don't have to worry about expanding it

It could be 2+1 beacuse it says there are twice as many
Answer:
8.80
Step-by-step explanation:
When rounding up and you are stuck with nine
You can't say 8.710
Your simply add one to the number before it
8.80 that your answer
The area covered by the advertisement on the page is
.
<h3>What is the definition of area of a rectangle?</h3>
The area of a rectangle covers is the space it takes up inside the boundaries of its four sides. The dimensions of a rectangle determine its area. In general, the area of a rectangle is equal to the product of its length and breadth of the rectangle.
The formula of area of rectangle is

let the given page represents a rectangle.
We take the length of the advertisement is
unit and breadth of the advertisement is
unit.
The area of the advertisement 

Therefore, the area covered by the advertisement on the page is 
To learn more about area of a rectangle from the below link
brainly.com/question/25292087
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