Technology changes advertising and communications by increasing the outreach of people that will get the message, and increasing the speed at which they get the message. Which in turn makes the advertising more relevent because they can release more product to a wider audience during a specific time period. 
 
        
             
        
        
        
Solution :
'AND" operation is a logical operation and is used in logical connective combining two statements and in truth tables. 
Using AND operation verifies whether the outcome P and Q is true only when both the P as well as Q are true.  If one of the P or Q is not true, then outcome result will be false.
In the context, Kamal wishes to offer a new and more favorable contracts to the business customers who use a wireless services and receive a discount.
Therefore, using the AND operation of the customers as :
Customer     Wireless     Discount     Outcome
    A                   N                   N             FALSE
    B                   Y                   N             FALSE
   C                   N                   Y              FALSE
    D                   Y                   Y             TRUE
     
 
        
             
        
        
        
Answer:   you said "Tamara needs to use
operators to organize the students' grades, then
operators to compare the results."
i think your right 
Explanation:
sounds right.
 
        
             
        
        
        
Answer:
b. False
Explanation:
Difficult economic times, increased global competition, demand for customization, and increased consumer sophistication does not direct companies to hire more employees and outsource middle managers.
Rather, companies tend to invest new technologies, information systems to satisfy the needs in global competition, consumer sophistication and customization. 
Middle managers outsourced cannot deal these issues effectively, therefore they need to be company employees.  
In difficult economic times, companies does not want to hire extra employees because of increased cost. 
 
        
             
        
        
        
The formula if he copies correctly if not plain numbers