If f(x)=2x+7 and g(x)= x^2-4/2x+1 then g(f(-5))?

a)-3
b)6
c)-1
d)2​

Given a binomial distribution variable with n=20 and p=0.60 find the following possibilities using the binomial table a) p(x < 13) b) p x > 15) c) p(x = 17) d) p(11 < x < 14) e) p(11 < x < 14)