the function w(x)=-0.01x^2+0.27x+9.20 can be used to estimate the number of workers in the US, x years after 1980. How many workers were there in 1995?

please show work.
a. 9.2 M
b. 10.4M
c. 11M
d. 15.5M

w(15)=.01*15^2+.27(15)+9.20=2.25+4.05+9.20

= you do it.