A group of k elements can be chosen from a group of n elements in

ways.

The answer is B. 495.
Answer:
Answer is in a photo
Step-by-step explanation:
Answer:
5.243 is less than 5.4....
Answer:
Step-by-step explanation:
(7,6) (-3,-1)
(x1,y1) (x2,y2)

Answer:
your answer would be 20 because you would find what both can go into.