Answer:
Since there is one peak, we can call this unimodal. As the numbers do not exactly match up (for example, 20-39 is 21 and 60-79 is 23), this is not symmetric, but it is approximately symmetric as the numbers are similar
99,999,999 + (-4) is basically 99,999,999 - 4
99,999,999 - 4 = 99,999,995
I think it would mostly be A
<span>−<span>4<span>(<span>x−12</span>)</span></span></span><span>=<span><span>(<span>−4</span>)</span><span>(<span>x+<span>−12</span></span>)</span></span></span><span>=<span><span><span>(<span>−4</span>)</span><span>(x)</span></span>+<span><span>(<span>−4</span>)</span><span>(<span>−12</span>)</span></span></span></span><span>=<span><span>−<span>4x</span></span>+<span>48</span></span></span>