Answer:
280
Explanation:
Average = (240 + 315 + 290 + 180 + 375) ÷ 5
= 1400 ÷ 5 
= 280
Cheers
 
        
             
        
        
        
Answer:
a. double-cross
Explanation:
  Using the blockchain technology in the case of issuing concert tickets solves the problem with double-cross, which is when someone cheats another person who had trusted in them for some transaction. <em>A great asset with blockchain is the transparency with all the transactions because they are registered and cannot be erased or changed.</em>
 
        
             
        
        
        
Answer: you can add program by using a "pin" option or 
For frequently used program you can customize the list by including or exuding program
But those on right are coming with Windows features
 
        
             
        
        
        
To prevent other users from accidentally or deliberately changing, moving, or deleting data in a worksheet, you can lock the cells on your Excel worksheet and then protect the sheet with a password.
 
        
             
        
        
        
For( count = 50; count > 0; count-- )
    System.out.println( count );