Answer:
I think it's C but I might be
Step-by-step explanation:
72 hours is exactly 3 days...
Answer:
Choice 'D' (10x + 9) (10x-9) is the correct answer
Step-by-step explanation:
100x^2 - 81
This is a difference of squares...
therefore = (10x + 9) (10x - 9)