The answer is D I believe

.... Hope this will help....
Answer:
4.6 feet
Step-by-step explanation:
The equation is:

Where
v is initial velocity (given as 16)
s is initial height (given as 0.6)
Substituting, we can write:

This is a quadratic equation of the general form: 
Which we can conclude the coefficients to be:
a = -16
b = 16
c = 0.6
The max height occurs at the value: 
So, max height occurs at:

We will get the max height if we put t = 0.5 into the original equation. So that would be:

Max Height = 4.6 feet (occurs at t = 0.5 seconds)
Answer:
D(12) = 2,600 miles
It means a distance of 2,600 miles is already traveled from home after 12 hours
Step-by-step explanation:
To find D(12); all we have to do is to substitute the value of 12 for D
We have this as;
D(12) = 3260-55(12)
D(12) = 2,600
In the context of this problem, what this mean is that the distance away from home is 2,600 miles after traveling 12 hours