Question

per the us constitution, congress has the authority to:
interpret laws and determine their constitutionality
enforce laws by leading/controlling government agencies and organizations.
determine how taxes are raised and build a national budget to fund programs & services.
meet with foreign leaders and determine their individual states relationship with foreign governments.

Explanation:

• The power to interpret laws and determine constitutionality lies with the judicial branch (Supreme Court).
• The executive branch enforces laws through agencies.
• Congress has the power of the purse - it determines how taxes are raised (Taxing and Spending Clause, Article I, Section 8) and builds the national budget.
• Meeting with foreign leaders is mainly an executive - branch (President) function, and states don't independently determine foreign - government relationships under the Constitution.

Answer:

Determine how taxes are raised and build a national budget to fund programs & services.