Question: What's the lowest minimum wage in america?

Disambiguated questions and answers:
context: The minimum wage in the United States is set by US labor law and a range of state and local laws. Employers generally have to pay workers the highest minimum wage prescribed by federal, state, and local law. Since July 24, 2009, the federal government has mandated a nationwide minimum wage of $7.25 per hour. there were 29 states with a minimum wage higher than the federal minimum. From 2017 to 2018, eight states increased their minimum wage levels through automatic adjustments, while increases in eleven other states occurred through referendum or legislative action.
question: What has been the federal minimum wage in the United States since July 24, 2009?
short_answers: $7.25 per hour
wikipage: Minimum wage in the United States
context: The federal minimum wage in the United States was reset to its current rate of $7.25 per hour in July 2009. Some U.S. territories (such as American Samoa) are exempt. Some types of labor are also exempt: Employers may pay tipped labor a minimum of $2.13 per hour, as long as the hour wage plus tip income equals at least the minimum wage. Persons under the age of 20 may be paid $4.25 an hour for the first 90 calendar days of employment (sometimes known as a youth, teen, or training wage) unless a higher state minimum exists. The 2009 increase was the last of three steps of the Fair Minimum Wage Act of 2007, which was signed into law as a rider to the U.S. Troop Readiness, Veterans' Care, Katrina Recovery, and Iraq Accountability Appropriations Act, 2007, a bill that also contained almost $5 billion in tax cuts for small businesses.
question: What is the federal minimum wage in the United States for tipped labor?
short_answers: $2.13 per hour, as long as the hour wage plus tip income equals at least the minimum wage
wikipage: Minimum wage in the United States
context: The federal minimum wage in the United States was reset to its current rate of $7.25 per hour in July 2009. Some U.S. territories (such as American Samoa) are exempt. Some types of labor are also exempt: Employers may pay tipped labor a minimum of $2.13 per hour, as long as the hour wage plus tip income equals at least the minimum wage. Persons under the age of 20 may be paid $4.25 an hour for the first 90 calendar days of employment (sometimes known as a youth, teen, or training wage) unless a higher state minimum exists. The 2009 increase was the last of three steps of the Fair Minimum Wage Act of 2007, which was signed into law as a rider to the U.S. Troop Readiness, Veterans' Care, Katrina Recovery, and Iraq Accountability Appropriations Act, 2007, a bill that also contained almost $5 billion in tax cuts for small businesses.
question: What is the federal minimum wage in the United States for persons under the age of 20 in the first 90 calendar days of employment?
short_answers: $4.25 an hour
wikipage: Minimum wage in the United States

Long-form answers:
long_answer: Since July 24, 2009, the federal minimum wage in the US has been $7.25 per hour, with a few exemptions. The minimum wage for tipped labor is $2.13 per hour, as long as the hour wage plus tip income equals at least the minimum wage. Persons under the age of 20 can also be paid what's called a youth, teen, or training wage for the first 90 calendar days of their employment, which is $4.25 an hour.