First, let's find the area of one face of the cube.
Area = base x height
A = 5 x 5 = 25
There are 6 faces on a cube, so we can multiply the area of one face by 6 to get the total surface area.
SA = 25 x 6 = 150 ft^2
Hope this helps!
The answer is line 3. Line 3 has -12 - 3 and below that they have -9. It would be
-12 - 3 = -15
Answer:
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Speed=distance traveled/time of the travel=78/2=39 mph
