Four photographers are taking pictures at a school dance. photographer a takes 25 of the pictures, photographer b takes 4% , photographer c takes 0.29 hey , and photographer d takes 27/100 . which choice lists the photographers in order from least to greatest by the amount of pictures they take?

Let
x> number total of pictures

we know that
A>25
B> 4%> 4/100> 0.04x
C> 0.29> 29%> 0.29x
D> 27/100 > 27%> 0.27x

[B+C+D]=4%+29%+27%> 60%
that means 
A=100%-60%> 40%
so
A> 0.40x

A>0.40 x
B> 0.04x
C> 0.29x
D> 0.27x

the answer is
the photographers list in order from least to greatest by the amount of pictures they take is
B> 0.04x
D> 0.27x
C> 0.29x
A> 0.40x