Given : g(x) = 2x - 5
Let us first find out what is the value of g(-2.5)
⇒ g(-2.5) = 2(-2.5) - 5
⇒ g(-2.5) = -5 - 5 = -10
Now, g(g(-2.5)) = g(-10)
⇒ g(g(-2.5)) = 2(-10) -5
⇒ g(g(-2.5)) = -20 -5
⇒ g(g(-2.5)) = -25
