Answer:
<em>Assuming person A and person B are part of the 7 people</em>, there are 10 ways the 7 people can line up if A needs to be first or last and B needs to be in the middle.
Step-by-step explanation:
There are 2 places for A (first, last) and 5 places for B (anywhere but first or last). 2 x 5 = 10.
Answer:
I think c 430 and if it is wrong I'm so sorry
Answer:
Step-by-step explanation:
x is greater or equal to 13
Answer:
A, E, F, D
Step-by-step explanation:
Done this before
1/4, 1/2, 4/7, and 2/3. I hope this helps!
