Answer:
<u>3rd option: The number of protons and neutrons</u>
Step-by-step explanation:
Protons are positively charged
Neutrons are negatively charged
You can easily remember this by the P and N
For an object to be "neutral", the protons and neutrons have to be equal. If they are not equal it will be positively charged of negatively charged.
Start by subtracting 1/2 from both sides to get 3 1/4 = x. there you go!
Answer:
<h2>Required set will be :-</h2><h3>(9,15)</h3>
Answer:

Step-by-step explanation:
The formula for the area of rectangle is length times width:

Use FOIL method:

First question: B. >2
Second question: B,C,or D (there is no difference between them)
Third question: C