Answer:
Proportionality Constant = k = 
Step-by-step explanation:
Equation is:

=> 
Comparing it with  , where k is the proportionality constant, We get:
, where k is the proportionality constant, We get:
Proportionality Constant = k = 
 
        
                    
             
        
        
        
Answer:
   (c)  10 phones
Step-by-step explanation:
The mean is the sum divided by the number of contributors:
   (12 +10 +9 +5 +14 +10 +10)/7 = 70/7 = 10
The mean number of phones sold for the week was 10 phones.
 
        
             
        
        
        
Answer:
25
Step-by-step explanation:
You have to do base x height divided by 2
50/2
 
        
             
        
        
        
Answer:
AB = 2.18 units
Step-by-step explanation:

 
        
             
        
        
        
Answer:
Tyrone paid the higher markup rate.
Step-by-step explanation:
Tyrone and Terri both bought sofas with installment loans. 
Tyrone bought his own with a sticker price of $1350 by paying $74 a month for 24 months. Therefore,
74 × 24 = $1776
The mark up = $1776  -  $1350 = $426
Tyrone markup rate = 426/24 = $17.75  per month
Terri bought his own with sticker price of $950 by paying $52 a month for 24 months. Therefore,
52 × 24 = $1248
mark up = $1248  - $950  = $298
Terri markup rate = 298/24 = $12.4166666667  = $12.42 per month