Two panels display student performance data from a CSV file. The top chart plots math, reading, and writing scores as a multi-series line chart across student index. The bottom chart combines math scores as semi-transparent bars with reading scores as a line overlay for the first 100 students. Both charts use D3.js v7 with SVG rendering, d3.line for the series, d3.scaleLinear for axes, and d3.scaleBand for the bar categories.