IF MY FRIEND CHOOSE A NUMBER AND THEN USED A RULE TO MAKE A NEW NUMBER HE DID THIS 7 TIMES USING THE SAME RULE THE TABLE BELOW SHOWS HIS RESULTS WHAT RULE COULD HAROLD HAD USED EXPLAIN INPUT OUTPUT 28 6 12 3 9 10 16

To understand the rule that Harold used to create the new numbers, let's examine the relationship between the input numbers and the output numbers.

Looking at the pattern in the table:

Input: 28 --> Output: 6
Input: 12 --> Output: 3
Input: 9 --> Output: 10
Input: 16 --> Output: ?

One possible relationship might be that Harold divided each input number by a specific value to get the corresponding output. Let's test this assumption by dividing the input numbers by the previous output numbers:

28 ÷ 6 = 4.67
12 ÷ 3 = 4
9 ÷ 10 = 0.9

Based on this assumption, we can conclude that Harold was dividing each input number by the previous output number to obtain the new output number. This rule seems to hold true for the given inputs and outputs.

Therefore, it is likely that the rule Harold used to create the new numbers is to divide each input number by the previous output number.