Answer:
39 shelves needed to build
Step-by-step explanation:
<em>To find the number of shelves needed we need to divide the number of mystery books by 34</em>
<em>We know that. Each shelf can hold 34.</em>
<em>It is given that, There are 1,326 mystery books</em>
<em>So, 1,326/34</em>
39 shelves needed to build