Answer:
Option C: 11.7%
Step-by-step explanation:
The number of elements in sample space when a coin is flipped 10 times will be:

Let A be the event that the tails appear 7 times:
Then,

Converting into percentage:

So, option C is correct ..
Answer:
Communitive Property
Step-by-step explanation:
Communitive property is when you switch up numbers when you multiply and add but it's still the same.
Answer:4.3
You round to the tenths place
Now what you want to do is 21 + (-3). Since this is the same as saying 21 - 3, the answer is 18. Therefore, the answer is 18°F.