Explain the place value relationship when the same two digits are next to each other in a multi digit number

When the same two digits are next to each other in a multi digit number, the relationship is basically nonexistent. just because they are the same doesn't mean they have the same value.
Ex. 233
the threes are the same but they do not have the same value. the first three represents three tens(30) because it's in the tens place. the second three just represents 3 because it's in the ones place.

The answer is: a = about 63.59ft2 for 15