Sum is used for addition so the answer would be:
D. f+6
I believe it b I am sorry if iam wrong
A=6a^2
A=6(5.5)^2
A=181.5
Hopefully I answered correctly.
The radius of the circle is 24
Each coin can have the outcomes heads (H) or tails (T).
The spinner can have the outcomes 1, 2, 3.
The total number of outcomes is the product of the individual numbers of outcomes.
2 * 2 * 3 = 12
Here's a way of thinking about it:
The coins can have these four outcomes:
HH
HT
TH
TT
For each of the 4 outcomes of the two coins, there are 3 different outcomes of the spinner, so the total number of possible outcomes is 4 * 3 = 12.