Answer:
21 matches
Step-by-step explanation:
This is a combination problem where we have to select two member out of 7 members
So we want calculation of 7C2
7C2 = 7!/[(2!)(7-2)!]
(7*6*5*4*3*2*1)/[(2*1) *(5*4*3*2*1]
(7*6)/2 ~ Note everything that easily cancels here!
42/2
21 matches
Just took the test. A is the right answer.
Answer:
18 bags of skittles
Step-by-step explanation:
19-7.25-0.5x=2.75
=> -0.5x=-9
=> x=18
Answer:
r+1
Step-by-step explanation:
Answer: 8
Step-by-step explanation: Divide 224 by 28