It would be A, most definitely.
You would divide 24 by 5 so the length would end up being: 4.8 in
Hope it helps!
The answer for 7 x 42 is 294.
<span><span>4−3</span>−<span><span>(2)</span><span>(<span>−6</span>)</span></span></span><span>=<span>1−<span><span>(2)</span><span>(<span>−6</span>)</span></span></span></span><span>=<span>1−<span>(<span>−12</span>)</span></span></span><span>=<span>13</span></span>