When Libby wrote the email to her friend, she typed the '@' symbol. When pressing SHIFT and 2 together, it pastes this aforementioned symbol. However, there isn't any specific name for the symbol. As a matter as fact, there are several names that this symbol goes by.
The most famous name this symbol is called is the "at symbol" or the "at sign". In terms of a formal name, "commercial at" would be a good one.
Here's an example with the symbol:
[email protected]
This is essentially telling the email server where to send your email. From this, they'll know it's located at brainly.com! It's pretty neat.
 
        
                    
             
        
        
        
I think the correct answer from the choices listed above is the first option. In order for a fault-block mountain to form, a shift must take place along a fault line and one side must be elevated. Fault-block mountains form<span> when Earth's crust pushes material up and down near a </span>fault line<span>. Hope this answers the question.</span>
        
             
        
        
        
A cell reference is also called a cell address.
        
             
        
        
        
The answer is B becausePower brakes are a system of hydraulics used to slow down or stop most motor vehicles. It uses a combination of mechanical components to multiply the force applied to the brake pedal by the driver into enough force to actuate thebrakes and stop a vehicle that can weigh several tons.