Answer:
Option D is correct
Surface area of a cube is 294 square units
Step-by-step explanation:
Surface area of a cube is given by:
square unit
where
S is the surface area of a cube
a is the length of edge of a cube.
From the given figure, we have;
a = 7 units
then;
square units
Therefore, the Surface area of a cube is 294 square units
The volume of a sphere is:
V=(4πr^3)/3, and you are told that r=5in so
V=(4π125)/3
V=500π/3 in^3
V≈523.60 in^3
Because 60 seconds= 1 minute and then 120 seconds=2 minutes, u multiply 10 ×12 to get to 120 seconds and then u multiply 4×12 which equals the answer which is 48.