Which ideas were developed during the Gupta Empire? Choose four answers.Roman numeralsthe concept of zerothe decimal systemthe approximation of pithe fact that the Earth spinsthe circumference of the Earth

Gupta-era scholars made important advances in mathematics and astronomy. They developed the concept of zero and the decimal system, approximated pi as about 3.1416, and recognized that Earth spins on its axis. Roman numerals and measurements of Earth’s circumference were known before the Gupta Empire, so they are not the four answers here.

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