16/80 = 1/5 just put it into the calculator
A = pq/2
p = diagonal 1
q = diagonal 2
The answer would be 24 because 24-4 is 20
Answer:

Step-by-step explanation:
The applicable rules of exponents are ...

Your ratio simplifies to ...

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Please note that simplifying the constants, -8/10 to -4/5, eliminates half the answer choices. Since exponents are only multiplied when a power is raised to a power, you can pretty much eliminate the second choice as being unreasonable. ((a^b)^c = a^(bc))
Convert to equivalent fractions to see
Both bottom s can be 6
So times the half by 3
And times the third by 2
1/2=3/6
1/3=2/6
So she has a total of 5/6 of the movie accounted for...
So the left over is 1/6
1/6 at nighttime