What is the volume of a cube with a side length of 3t5units?

Cube V = s3

Hannah is 3 years older than twice her brother joey’s age. joey is 2 years old. how old is hannah? show all of your work! the number of students is five more than seven times the number of teachers. there are 10 teachers. how many students are there? be sure to show all of your work!

This is different from the first one can someone me

Do you mind if you guys me with this question i’m on number 8