Business Calculus
n(l(x))n\(\left\)(l\(\left\)(x\(\right\))\(\right\))
n(l(m(x)))n\(\left\)(l\(\left\)(m\(\left\)(x\(\right\))\(\right\))\(\right\))
n(l(k(x)))n\(\left\)(l\(\left\)(k\(\left\)(x\(\right\))\(\right\))\(\right\))
n(m(l(x)))n\(\left\)(m\(\left\)(l\(\left\)(x\(\right\))\(\right\))\(\right\))