A once-popular children's doll is slowly declining in popularity. the quartic function f (x)equals negative 0.022 x superscript 4 baseline plus 0.457 x cubed minus 2.492 x squared minus 5.279 x plus 87.419 commaf(x)=−0.022x4+0.457x3−2.492x2− 5.279x+87.419, where x is the number of years since 1993, can be used to estimate the number of dolls of this type that were sold (in thousands) during a given year from 1993 to 2003. estimate how many dolls were sold in 19941994.