In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[Q]: Problem: i chose a number and divide it by 8 . then i subtracted 100 from the result and got 6 . what was the number i chose ? 
Options: a ) 600 , b ) 700 , c ) 800 , d ) 900 , e ) 848
[A]: e


[Q]: Problem: given f ( x ) = 3 x – 5 , for what value of x does 2 * [ f ( x ) ] – 10 = f ( x – 2 ) ? 
Options: a ) 1 , b ) 2 , c ) 3 , d ) 4 , e ) 5
[A]: c


[Q]: Problem: if y > 0 , ( 7 y ) / 20 + ( 3 y ) / 10 is what percent of y ? 
Options: a ) 40 % , b ) 50 % , c ) 65 % , d ) 70 % , e ) 80 %
[A]:
c