Answer:
8 is the other number
Explanation:
The product of two numbers is 72 lets suppose both the numbers are x and y
which means x multiplied by y equals 72
now, one of the numbers is 9 which means lets just say y=9 because its already given in the question that one of the numbers is 9 so it becomes

now we simply divide 72 by 9 and x equals 8
