Please help me!!!!!?

Math problem: Evaluate the function to answer the question.
The time t in seconds it takes to download a file from a server is a function of the size s, in gigabytes, of the file and is given by
t = f(s) = 0.4s.
(a)
Find the ordered pair to complete the following table.
s    t               (s, t) 
20  8            (20, 8)
40 16           (40, 16)
60 (answer) (Answer)
80 32          (80, 32) 
100 40        (100, 40)
(b)
Write a sentence that explains the meaning of the ordered pair
(80, 32)
 in the context of this problem.
It takes   seconds to download a(n)  gigabyte file. 
(c)
Graph the function for s between 20 gigabytes and 100 gigabytes.

2017-04-11T00:37:33.809Z