Answer:
C & D
Step-by-step explanation:
Both have an odd amount of numbers, meaning there is a perfect middle.
Answer:
The first option is correct
Step-by-step explanation:
Hope it is helpful....
Answer:
9/10
Step-by-step explanation:
the rule says

so in our case
a=3
b=4
c=5
d=6
so the division is

we can simplify

that's our answer
I don't know if you need step by step of the rule, if you need let me know
Answer: ∠REA = 53°
Step-by-step explanation:
Since ∠BEA = 71°, set both angle measures equal to that.
2x + 5x + 8 = 71
Solve for x. First, combine like terms:
7x + 8 = 71
Then, subtract 8 from both sides:
7x = 63
Divide both sides by 7:
x = 9
Now, plug x into ∠REA:
∠REA = 5x + 8
∠REA = 5(9) + 8
∠REA = 45 + 8
∠REA = 53°
Hope this helps!