Answer:
7.079
Explanation:
In the provided numbers, the 9 has the least value in 7.079. In this number, 9 is in the thousandths place, which is a lower place value than in the other numbers. Here's why:
In 0.9, the 9 is in the tenths place, which has a value of 0.9.
In 0.29, the 9 is in the hundredths place, which has a value of 0.09.
In 7.079, the 9 is in the thousandths place, which has a value of 0.009.
In 9.1, the 9 is in the ones place, which has a value of 9.
Therefore, in 7.079, the 9 has the least value.