What is the answer for m/x=k-6,for m ?

What is the value of the expression below? (81^2)^1/8

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics