The function L(t) takes t, the number of weeks since a factory was opened, and gives L,
the number of operational factory lines. The function P() takes 1, the number of
operational factory lines, and gives P, the weekly profit generated by the factory. If we
want to use these two functions to determine the weekly profit generated by the factory 6
weeks after the factory was opened, which one of the following expressions would
correctly find that amount?
a) L(P(6)
d) (L+P)(6)
b) P(L(6)
e) (LP)(6)
c) (L-P)(6)