Describe the relationship between the values of the digits in the number 9999999

Each digit has a value ten times the value of the digit to its right.

Explanation:

The given number is 9,999,999.

Each digit has a value according to its place.

The right most 9 is in the place of the ones and its value is 9 * 10⁰ = 9 * 1 = 9.

The second 9 from the right is in the place of the tens and its value is 9 * 10 = 90.

The third 9 from the right end is in the place of the hundreds and its value is 9 * 100 = 900.

The next 9 is in the place of the thousands, so its value is 9,000.

So, each 9 has a value ten times the 9 to its right.