How do you find the domain of f(x)=lnlnlnx

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

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

Which set of lengths could represent the sides of a triangle? a. 3, 7, 10 b. 4, 5, 10 c. 6, 8, 14 d. 12, 6, 7