Answer:
C) If the perfect square terms are A^2 and B^2 and other terms must be 2 AB and -2AB
Step-by-step explanation:
As,

27 because you have to divide 54 pencils by two people
The answer is 4 square root 5 or -4 square root 5
Answer:
59
Step-by-step explanation:
It goes to 59 because the number in the decimals place is a 0, for 0-4 you round down and for 5-9 you round up.