Me out here with this another equation the the sign on the left is the checking

Which statement about perfect cubes is true

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi