what is f(-3) is another way to say "what is the value of f(x) when x = -3?", well for that we can simply look at the piece-wise function graphed, Check the picture below.
The answer is D
real explanation: take 0.642 & divide it by -0.28.
The solve for n would be 11
2 to the second power is 4 and 4x11=44
True.
7/12 is greater than 4/12.
Have a wonderful day! :)