Three times 3^81 is equal to 9 to what power? *is there a quick way to do this with out using a calculator

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

Astore has apples on sale for three dollars or 2 pounds how many pounds of apples can you buy for nine dollars if an apple is approximately 5 ounces how many apples can you buy for nine dollars

Elizabeth is using a sample to study american alligators. she plots the lengths of their tails against their total lengths to find the relationship between the two attributes. which point is an outlier in this data set?