A store offers a discount of 40% off any one regular-price item. The price paid after this discount is represented by s(x). Employees also receive 10% off any purchases; the price paid after this discount is represented by e(x). Which of the following represents the composite function of applying the store discount first, and the employee discount second? e(s(x)=0.04x s(e(x))=0.54x e(s(x))=0.54x s(e(x))=0.04x