Hmm that is a true statement, the product of any 2 mixed numbers between 4 and 5, will be between 16 and 25
we can show that it is true by testing the bounds if the number is 4 and the other is 4, then it is 16 we aren't allowed to do 4 since it isn't mixed and it equals 4 that is the lower bbound
if the numbes 5 and 5 are used, then it is 25 we arene't allowed to use 5 since it isn't mixed and it equals 5
so the product of any 2 numbers between 4 and 5 will be between 16 and 25
