3.The function P(x) = .018x³ - .687x² + 6.638x + 16 describes the value of an ounce of silver
over a 23-month period. G(x) = 16(1.15) describes the value of an ounce of gold over the same
23 month period.
How much was gold worth at the beginning of
the 23 month time period?
