Is the relation below also a function?
{(-3,-9), (-2, - 6), (1,6), (1,2)}
The m

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

Sara can take no more than 22 pounds of luggage on a trip.her suitcase weighs 112 ounces.how many more pounds can she pack without going over the limit?

Asap! i'm not good math and i'm lost.