How many days does the President have to sign a bill

10

Explanation:

The Constitution provides the President 10 days (excluding Sundays) to act on legislation or the legislation automatically becomes law. There are two types of vetoes: the “regular veto” and the “pocket veto.” The regular veto is a qualified negative veto.

                                     The president has ten days (excluding Sundays) to sign a bill passed by Congress. A regular veto occurs when the President returns the legislation to the house in which it originated, usually with a message explaining the rationale for the veto.

Normally if a president does not sign a bill, it becomes law after ten days as if he had signed it. ... If Congress prevents the bill's return by adjourning during the 10-day period, and the president does not sign the bill, a "pocket veto" occurs and the bill does not become law.

                                                            The president can approve the bill and sign it into law or not approve (veto) a bill. If the president chooses to veto a bill, in most cases Congress can vote to override that veto and the bill becomes a law. But, if the president pocket vetoes a bill after Congress has adjourned, the veto cannot be overridden.

Explanation:

The Constitution provides the President 10 days (excluding Sundays) to act on legislation or the legislation automatically becomes law. There are two types of vetoes: the “regular veto” and the “pocket veto.” The regular veto is a qualified negative veto.

using the scientific method.

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.