The second choice is the best description:
h is the function name; t is the input, or independent variable; and h(t) is the output, or dependent variable.
Answer : C) 12.8 cubic cm
The volume ( v) of a gas in a container at a constant temperature varies inversely as the pressure (p)
If y is inversely proportional to x then 
where k is constant of proportionality
v is inversely proportional to p then 
the volume of a gas is 24 cubic centimeters when the pressure is 16 pounds
Given : v= 24 and p = 16. We need to find out k

Multiply by 16 on both sides
k = 384
Now we find out the volume under a pressure of 30 pounds

= 12.8 cubic cm
(x+y)+(x-y)i=7+3i
x+y =7
x-y =3
add these two equations together
x+y =7
x-y =3
------------------
2x = 10
divide by 2
x=5
x+y = 7
5+y =7
subtract 5 from each side
y =2
Answer: x=5
y=2
Let's assign each a variable:
Computer: 3x
Printer: x
We know that the total is 1136, so:
x+3x=1136
4x=1136
Now, we divide 1136 by 4 to get the cost of the printer.
1136/4=284
So, now let's apply this to what we wrote previously.
Answer:
Printer: 284
Computer: 284*3= 852
Hope I helped! If I did, feel free to vote brainliest.