Which of these mathematical advances occurred under the guptas during the golden age in india? select all that apply. (2points)
a. discovered the ratio of pi
b. devolved the arabic numeral system
c. originated the idea of calculus
d. invented the concept of zero.

b. devolved the arabic numeral system

c. originated the idea of calculus

Explanation:

The Guptas were an Empire on India that was characterized for his advances on several different sciences, mostly mathematics and physics, and the main advances in Mathematics were the development of the arabi numeral system, and origination of the idea of calculus.

christopher columbus (1492–1504)

both are true, the congress does have the power to create banks, even if this power is not specifically described in the constitution, since there is nothing restricting it and there is power given to the congress to make "all laws which shall be necessary and proper". maryland was not allowed to tax a branch of the national bank operating there, and the supreme court decided that no state could. both of these topics were discussed in a decision of the mcculloch v. maryland case in 1819.