
I'm not sure what to do. Do I break the thing into shapes and calculate each?
Like:
$A = 2\times 4\times 0.5 = 4$
$B = 8\times 4 = 32$
$C = ?$
$D = ?$
Also, how does the $14s$ impact this?

I'm not sure what to do. Do I break the thing into shapes and calculate each?
Like:
$A = 2\times 4\times 0.5 = 4$
$B = 8\times 4 = 32$
$C = ?$
$D = ?$
Also, how does the $14s$ impact this?
Hint: when the speed varies linearly with time, the distance covered is the same as if the speed was constant and equal to the average of the starting and ending speeds. Therefore $C = 2 \cdot (4+2)/2$.
(In fact you already used this for $A = 2 \cdot 4 \cdot 0.5 = 4$ since $2$ is the time, and $4 \cdot 0.5 = \frac{0 + 4}{2}\,$ is the average between speed $0$ at the beginning of time interval $[0,2]$ and speed $4$ at its end.)