The student used correct mathematical notation, symbols, and terminology but included an unnecessary arrow in an equation that should have been removed. Key terms and variables were effectively defined and explained upon their introduction, and the main concepts were clearly described in the introduction, showing a solid understanding of the relevant mathematical principles. However, multiple forms of mathematical representation were not used appropriately, and the degree of accuracy for rounded values was not stated. The student successfully explained all mathematical calculations, rounded results only at the end of calculations, and applied a deductive method with logical proofs, but failed to label graphs, tables, and diagrams correctly, placing labels at the top instead of the bottom.