Answer:
Constant of proportionality is y divided by x. y is 2 and x is 4. 2 divided by 4 is 1/2.
Let me know if that is correct.
Step-by-step explanation:
Let time be x distance be y
Put value in eq(2)



Put it in eq(1)
1. Y=X-4
2. Y=X*4
3. Y=X+3
4. Y=X/6
5^4/5
Multiply the number by it's exponent
625/5
Divide
Final Answer: 125