Answer:
b
Step-by-step explanation:
BCCCCCC
Subtract m + ? from m:
11-7 = 4
12-8 - 4
16-12 = 4
21-17 - 4
All the differences are identical, so the rule is to add 4 to m.
The expression would be m + 4
Answer:
The probability is:

Step-by-step explanation:
Keep in mind that the probability of getting a head is always the same for each

Therefore the probability of not having a head is:

So if we throw the coin 4 times the probability P of not getting any head is:


2/3 per hour. 15 min x 4 = 1 hour. 1/6 x 4 = 4/6. Simply 4/6 = 2/3