Which bmi measurement is considered underweight ? 22, 30,40,none of these

The answer is none of these.

BMI is the Body Mass Index, which is the body mass divided by the square of body height.

Generally for a BMI measurement to be considered underweight, it would be below 18.5, which none of the above match it's standard of being underweight, as all 22,30, and 40 are above 18.5.

However, sometimes it might also take count of the age, which might affect the result.

Hope it helps!

It is less likely that the shoe will slip while someone is walking

As long as it was one lick and the dog is a bigger dog, it should be fine. watch it carefully for a few days.