720 cubic inches of soil will be in the flower box.
Cuboid Definition: Cuboid shaped objects surround us in our day-to-day life. From television sets, books, carton boxes to bricks, mattresses, and shoeboxes, cuboid objects are all around us. In Geometry, a cuboid is a three-dimensional figure with six rectangular faces, twelve edges, and eight vertices.
Volume of Cuboid = Length x Width x Height
∴ The volume of the soil box = 15 x 8 x 8 = 960 inch³
Since 3/4 is occupied by the soil, the volume of the soil becomes
= 3/4 x 960
= 720 inch³
Learn more about Cuboid here :
https://brainly.com/question/19754639
#SPJ1