a cloud phone system is a Voice over IP (VoIP) based business telephoneplatform that is hosted by a third-party provider such as OnSIP. Cloud phonesystems typically offer advanced security and telephony features such as: extension dialing, auto attendants, and conference bridges
 
        
                    
             
        
        
        
<span>Net speed can be calculated by deducting errors in gross wpm which is more accurate </span>
        
                    
             
        
        
        
Answer:A)Smart-card PINs
Explanation: A pin is the defines as the personal identification number that is allotted to the smart card uniquely that is no other smart can have same number.This number is only known by the smart card holder only. 
This number is important because it works for the unlocking of the data that is securely stored and by entering the pin ,it can be decoded.Thus, the other given options are incorrect because they don't use enumeration to hide the data .Thus the correct option is option (A)
 
        
             
        
        
        
Answer:
length = float(input("Enter length of the backyard in foot: "))
width = float(input("Enter width of the backyard in foot: "))
sod_price = float(input("Enter the price of sod per square foot: "))
fencing_price = float(input("Enter the price of fencing per foot: "))
area = length * width
perimeter = 2 * (length + width)
cost = sod_price * area + fencing_price * perimeter
print("The cost of landscaping is $" + str(cost))
Explanation:
*The code is in Python.
Ask the user to enter the length, width, sod_price, and fencing_price
Calculate the area and perimeter of the backyard
Calculate the cost, sod_price * area + fencing_price * perimeter
Print the cost
 
        
             
        
        
        
No. If it  is cracked or damaged THROW IT AWAY. I can tell you from personal experience, not much worse than a wheel breaking apart while spinning and embedding chunks of the wheel in your chest and face.