The given expression $(($studentsInput $<8500)$ && $($studentsInput $>21500))$ incorrectly uses the $<$ and $>$ operators. The expression evaluates to true if studentsInput is less than $8500$ AND greater than $21500.$ No such integer value exists, so the expression always evaluates to false.

Changing the operators to $>=$ and $<=$ respectively causes the expression to evaluate to true if studentsInput is greater than or equal to $8500$ AND less than or equal to $21500.$

Not all tests passed.

clear