The answer is: 2a^4 - 3a^2 b - 5b^2
Answer:
67 people were still left waiting in line.
Step-by-step explanation:
If there are 65 plus 11 more, there'd be 76 people in line.
I guess the fact that it says "waiting in two lines" can be completely discarded because bottom line is 9 people got their drinks- which means that "waiting in two lines" means nothing.
76 - 9 = 67 people still left waiting in line.
78 is the significant figure because in maths 0's are not considered significant. Read more into significant figures to help you out.
Answer:
1/600, 6/100, 1/1400
Step-by-step explanation: