Answer:
Aman's age = 20, Arun's age = 28
Step-by-step explanation:
Let
= Aman's age
Let
= Arun's age
- - - -
(Sum of their age is 56 after 4 years in the future)


(Ages are in the ratio 5:7)

Now, we can use substitution to find for Arun's age:



∴ Arun is 
To find for Aman's age, we can use substitution:



∴ Aman is 20
Hope this helps :)
Answer:
Step-by-step explanation:
We have to find the points that are on the graph by finding the order pair (x, y) We are given the x value, so substitute x in the given equation f(x) and find y.
The graph is a line
I think that the second one is correct
42.25-39.85=2.4
37+1 1/4= 38.25
39.25-38.25=1
Eric came closer. Hope this helps!