4 products are being purchased.
Step-by-step explanation:
Given, 
Time taken to select each product = 5 seconds 
Time taken to complete check out process = 60 seconds 
Total time taken for a transaction = 80 seconds 
Let, 
x be the number of products purchased.
Time taken for each product*Number of product + Time for check out process = total process

Dividing both sides by 5

4 products are being purchased.
Keywords: variable, division
Learn more about division at:
#LearnwithBrainly
 
        
             
        
        
        
Answer:
161cm2
Step-by-step explanation:
Area: 1/2 x base x height
1/2 x 14 x 23=161
Area is measured in cm2 
Hope this helps!
 
        
             
        
        
        
Answer:
(a) [8, 14]
(b)  
(c)See attachment
Step-by-step explanation:
We want to choose a value of x within 3 units of 11.
(a)Now, 11-3=8 and 11+3=14
The possible values of x ranges is in the closed interval [8,14]
(b) Since x is within 3 units of 11., we have:

Solving the absolute inequality

(c)To draw the number line, we use a closed dot since we have the less than or equal to sign.
 
        
                    
             
        
        
        
multiply 300 by 7 and then you should be able to finish the equation