Is it permissible to pay off a debt with a loan, knowing that my salary is not enough to cover it if I want to open a women’s beauty salon, and will I be held accountable if girls leave my salon wearing makeup, knowing that there are Christian women in my country?

It is not permissible to borrow from usurious banks to pay off a debt, as this is usury itself. The creditor must grant the one in hardship a respite, as Allah Almighty says: "And if there is one in hardship, then grant him a respite until a time of ease." Usury is one of the great major sins, and it is not permissible to resort to it except in a dire necessity that does not exceed the removal of that necessity.