the answer is:
42.5
......
i commented the explanation in my answer
Answer: <em>D. 120 students</em>
Step-by-step explanation:
<em>This is an easy solution</em>
<em>Take 300 and divide it by 5</em>
<em>300/5</em>
<em>This will result in 40</em>
<em>Now Multiply 40 by 3</em>
<em>Like so: 40x3</em>
<em>This will result in </em><em>120</em>
Answer:18x+5
Step-by-step explanation:
Step-by-step explanation:
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![2.\\B-A=\left[\begin{array}{ccc}4&1\\6&0\end{array}\right]-\left[\begin{array}{ccc}3&1\\5&7\end{array}\right]=\left[\begin{array}{ccc}4-3&1-1\\6-5&0-7\end{array}\right]=\left[\begin{array}{ccc}1&0\\1&-7\end{array}\right]](https://tex.z-dn.net/?f=2.%5C%5CB-A%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D4%261%5C%5C6%260%5Cend%7Barray%7D%5Cright%5D-%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%261%5C%5C5%267%5Cend%7Barray%7D%5Cright%5D%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D4-3%261-1%5C%5C6-5%260-7%5Cend%7Barray%7D%5Cright%5D%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%260%5C%5C1%26-7%5Cend%7Barray%7D%5Cright%5D)
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