The image displays a close-up, overhead view of a work surface in Epe, Nigeria

The image displays a close-up, overhead view of a work surface in Epe, Nigeria. A black and white CASIO fx-991EX CLASSWIZ scientific calculator is centrally positioned on multiple sheets of white, lined paper. The papers are covered with handwritten mathematical formulas and calculations, including a table with columns such as `(x-x̄)` and `(y-ȳ)²`, and equations like `y = a + bx` and `b = Σ(x-x̄)(y-ȳ) / Σ(x-x̄)²`. A dark-skinned human index finger and thumb are visible in the upper left, positioned near the calculator and papers. In the upper background, a set of silver-colored keys, including a car key, and a dark, beaded band are resting on a bright green tabletop. A small, white, rounded object is partially visible to the left of the calculator.