Answer:

Step-by-step explanation:
Given
Let the total probability be 1
Probability that Brian wins a raffle = n/n+2
Probability that Brian does not win a raffle = 1 - Probability that Brian wins a raffle
Probability that Brian does not win a raffle = 1 - (n/n+2)
Probability that Brian does not win a raffle = 
Probability that Brian does not win a raffle = 
Hence required fraction is
Answer For the First One:
D, 51.3%
Step-by-step explanation:
The total number of students that ordered popcorn was 80 and 80 is 51.3% of 156 (the total number of students)!
Answer For the Second One:
C, It was reflected over the X-axis
Explanation:
If you just flip the DEF backwards over the x-axis it makes the GHI shape!
Hope this helps! :)
4=1 1 1 1
5= 1 1 1 1 1
So this means 5 and 4 are not equal