Answer:
One serving of law-fat yogurt contains 7.35 g of fat.
Step-by-step explanation:
One serving of
- a certain brand of yogurt contains 12 g of fat
- the low-fat yogurt contains 38.75% less fat
Let x g be the amount of fat in low-fat yogurt. Then 
12 g of fat - 100%
x g of fat - 100% - 38.75% = 61.26%
Write a proportion

Cross multuply

One serving of law-fat yogurt contains 7.35 g of fat.
 
        
             
        
        
        
the constant of proportionality
Step-by-step explanation:
proportional relationships are relationships between two variables where there are ratios equivalent. another way to think about them is that in a proportional relationship that one variable is always constant value times the other that constant is known as the constant of proportionality 
 
        
             
        
        
        
open the parenthes. and then after that you'll get 27+12x-15. if you simplify that then you'll get 12x+12
 
        
                    
             
        
        
        
Answer:
B
Step-by-step explanation:
The differences in the terms of f(x) are + 3, + 5, + 7
Since the differences are not constant the relationship is not linear
Note the differences in the differences are + 2, + 2,
The second differences are constant indicating a quadratic relationship
Note the relationship between x and f(x)
x = 1 → 1² = 1 ← require to add 5, that is 1 + 5 = 6 ← value of f(x)
x = 2 → 2²  = 4 ← require to add 5, that is 4 + 5 = 9 ← value of f(x)
x = 3 → 3² = 9 ← require to add 5, that is 9 + 5 = 14 ← value of f(x)
x = 4 → 4² = 16 ← require to add 5, that is 16 + 5 = 21 ← value of f(x)
Thus f(x) = x² + 5 → B
 
        
             
        
        
        
4=2c-12-4
4=2c-16
20=2c
10=c