Which mathematics product company pioneered the first solar-powered graphing calculator made from recycled materials and marketed it with a 'Carbon-Neutral Calculations' campaign?

The mathematics industry has been evolving to embrace sustainability practices in their product development and marketing. From eco-friendly materials in calculators to energy-efficient computing tools, mathematics product manufacturers are positioning themselves as environmentally responsible. This poll tests your knowledge about how sustainability has transformed the marketing and development of mathematics products in recent years.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Texas Instruments with their TI-Solar Series
Casio with their fx-Green Technology line
HP with their EcoMath Collection
Sharp with their EcoCalc Professional Series