Answer:
c
Step-by-step explanation:
A proper subset describes the set in full. An improper subset strays from the original set.
Pi & Phi in the human body. nautilus shells, Sunflowers, Seahorses, Pine Cones, Fibonacci Sequence etc.
So first you do length x width x height in this case 1.4 x 1.4 x 1.4
7 is bases number two , I'm not sure it sounds like similar makes more sense , but not sure for 2
