Answer:
ok
Step-by-step explanation:
556
So, 378/189=2. So it will double two times. x2x2=x4. 139x4=556.
Answer: a) 10!/7!
<u>Step-by-step explanation:</u>
The "quick" way of answering this is: 10 × 9 × 8 = 720
If you are using the formula then you get: