Amovie was 3 1/2 hours long. if lily turned the movie off 1/4 of the way through, how much time did she spend watching it?

7/8 of an hour

Step-by-step explanation:

We multiply the total of the movie, 3 1/2 hours, by the fraction she watched, 1/4:

1/4(3 1/2)

To multiply these, we convert the mixed number to an improper fraction.  We multiply the whole number, 3, by the denominator, 2; this gives us 6.  We add the numerator, 1; this gives us 7.  This makes it 7/2:

1/4(7/2)

To multiply fractions, we multiply straight across:

(1*7)/(4*2) = 7/8

answer: c

because if you look at the chart you can see a pattern and compare it to the question he simplify out your

but i think the formula is f(x)=6x

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this