1)
a
(bi) - (a-bu-
9.
i)
if n(u)= 100, n(a) = 75, n(b) = 40, n(aub) = 80, find n(
n(a-b), n(b - a) and n(a u b).

Acertain company's main source of income is a mobile app. the company's annual profit (in millions of dollars) as a function of the app's price (in dollars) is modeled by p(x)=-2(x-3)(x-11)p(x)=−2(x−3)(x−11) which app prices will result in \$0$0 annual profit? enter the lower price first.