According to popular belief, 80% of adults enjoy drinking beer. choose a group of 2 adults at random. the probability that all of them enjoy drinking beer is:
a.0.500
b.1.600
c.0.400
d.0.640

step-by-step explanation:

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2