Answer:
45/r
Step-by-step explanation:
You're just doing 45 divided by r.
Answer:
20
Step-by-step explanation:15-5=10 10 x 2 =20
The volume of a cube (V) is given in terms of its side length (s) as
... V = s³
You have
... 27n²⁷ = s³
You may recognize that 27 = 3³, so this can be written as

This result matches your second selection
... 3n⁹ units