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'.

[EX Q]: Problem: when leo imported a certain item , he paid a 7 percent import tax on the portion of the total value of the item in excess of $ 1000 . if the amount of the import tax that leo paid was $ 87.50 , what was the total value of the item ?
Options: a ) $ 1600 , b ) $ 1850 , c ) $ 2250 , d ) $ 2400 , e ) $ 2750
[EX A]: c

[EX Q]: Problem: if x ^ 2 + y ^ 2 = 15 and xy = 3 , then ( x y ) ^ 2 =
Options: a ) 8 , b ) 9 , c ) 14 , d ) 17 , e ) 20
[EX A]: b

[EX Q]: Problem: the sum of the non - prime numbers between 10 and 20 , non - inclusive , is
Options: a ) 60 , b ) 75 , c ) 90 , d ) 105 , e ) 120
[EX A]:
b