Posted by Betty on .
P(x)= .1(100)^2 +50(100)+300= 3,700,000
P(x)= .1(150)^2 +50(150) +300= 4,950,000
P(x)= .1(250)^2 +50(250) +300= 5,950,000
P(x)= .1(350)^2 +50(350) +300= 4,950,000
P(x)= .1(450)^2 +50(450) +300= 1,950,000

Algebra(please Proof Read 
Reiny,
always check your previous post before reposting the same question
http://www.jiskha.com/display.cgi?id=1327887798