Your answer would be (D) because 8*8 is 64. Then you multiply 64 by 6 since their are 6 sides to cube, and 384 mm³ is what you would get. Hope this helps!
Answer:
Number 3 is the correct awnser
Your numbers are confusing
Answer:

Step-by-step explanation:
Step One: Convert
49/16x^2-2=-0.05x+4
Step Two: Multiply Both Sides by 80
245x^2-160=-4x+320
Step Three: Move everything to the left
245x^2+4x-480=0
Final Step: Quadratic Formula
