Answer:
C 10 columns and 12 rows
Step-by-step explanation:
c = columns
r = rows
5c + 5c = 10c
6r + 6r = 12r
10 columns and 12 rows
The answer is C
Answer: I put a photo of what I did
The cube root of -216 is -6.0
Answer:
Neither; see below
Step-by-step explanation:
Your acceleration: 
Your friend's acceleration: 
Therefore, since both you and your friend accelerate at the same rate, neither is faster.