<p>Dorothy's Donuts has boxes for customers who buy at least `12` donuts. Each box has a volume of `520` `text{in}^3`. The box is `10` `text{in}` wide and `4` `text{in}` tall. </p><p>What is the length `(L)` of the box?</br><highlight data-color="#666" data-style="italic">Write your answer as a whole number, simplified fraction, or exact decimal.</highlight></p></p><RectangularPrism3D data-props='{ "rectangle_base": 13, "prism_height": 4, "prism_length": 10, "height_oriantation_right": true, "rotate_y_axis": 0.1, "rotate_x_axis": 0, "interactive": false, "faces": [ { "id": 1, "position": "front", "color": "orange", "opacity": 0 }, { "id": 2, "position": "back", "opacity": 0, "color": "orange" }, { "id": 3, "position": "left", "opacity": 0, "color": "blue" }, { "id": 4, "position": "right", "opacity": 0, "color": "blue" }, { "id": 6, "position": "top", "opacity": 0, "color": "blue" }, { "id": 5, "position": "bottom", "color": "blue", "opacity": 0 } ], "edges": [ { "id": 1, "face": "front", "position": "left", "color": "#080808", "label": "" }, { "id": 2, "face": "front", "position": "right", "color": "#080808", "label": " " }, { "id": 3, "face": "front", "position": "bottom", "color": "#080808", "label": "L" }, { "id": 4, "face": "front", "position": "top", "color": "#080808", "label": " " }, { "id": 5, "face": "back", "position": "left", "color": "#080808", "label": " " }, { "id": 6, "face": "back", "position": "right", "color": "#080808", "label": "4 in" }, { "id": 7, "face": "back", "position": "bottom", "color": "#080808", "label": " " }, { "id": 8, "face": "back", "position": "top", "color": "#080808", "label": " " }, { "id": 9, "face": "right", "position": "top", "color": "#080808", "label": " " }, { "id": 10, "face": "right", "position": "bottom", "color": "#080808", "label": "10 in" }, { "id": 11, "face": "left", "position": "bottom", "color": "black", "label": " " }, { "id": 12, "face": "left", "position": "top", "color": "black", "label": " " } ], "unit": "in", "show_default_labels": false, "animation_delay": 0, "animation_duration": 0, "animation_sequences": [], "show_animation": false, "length_offset_y": 0, "height_offset_y": 0.3, "zoom": 2}'></RectangularPrism3D>