Depende de lo bueno que seas.
Answer:
a. The Decimal System
Explanation:
The Decimal System, is one of the great mathematical innovation form ancient India. There is no clear date and place about the invention the decimal system.
It was first recorded in India, then spread to Islamic world, and further to Europe. Decimal system gave a unique turn to the world of mathematics and made the counting or measurement easy.
Hence, the correct answer is "a. The Decimal System".
Answer: The United Nations Security Council "veto power" refers to the power of the five permanent members of the UN Security Council to veto any "substantive" resolution. However, a permanent member's abstention or absence does not prevent a draft resolution from being adopted. This veto power does not apply to "procedural" votes, as determined by the permanent members themselves. A permanent member can also block the selection of a Secretary-General, although a formal veto is unnecessary since the vote is taken behind closed doors.
Explanation: