Answer:
The constant of proportionality is option D i.e 5.
Step-by-step explanation:
Variation:
Variation problems involve fairly simple relationships or formulas, involving one variable being equal to one term. There are two types of variation i.e.
- Direct variation
- Inverse variation
Direct Variation:
Mathematical relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other.
Example 
where, k is constant of proportionality.
The above given example is of Direct Variation
∴ y = 5 x
∴ k = 5 = constant of proportionality.
Inverse Variation:
Mathematical relationship between two variables which can be expressed by an equation in which the product of two variables is equal to a constant.
Example 
where, k is constant of proportionality.
Can you be a little more specific please
I believe it is 2 because, 0.4 is added on to 2. 2.7 is basically 2.70 making it 0.70 bigger than 2.
I hope this helped
Answer:
A = 2
Step-by-step explanation:
If A = 4 when B = 88, we can divide both A and B by 2 to find their values.
88/2 = 44
4/2= 2
We can also check this by dividing 88 by 4 to figure out that A = 1 when B = 22
We can then multiply both the values of A and B to get a proportional relationship of A = 2, B = 44
(sorry if this is confusing but I hope it helped)