raspberryguinea-pig332

Given that P(A) = 0.4 and P(B) = 0.5, and P( A and B) = 0.16,determine P( B|A).

a) 0.40
b) 0.50
c)0.18
d) 0.10

My answer is a...plz help!!!

Given that P(A) = 0.4, P(B) = 0.5, and P(A and B) = 0.20, determineP(A|B)
a) 0.40
b) 0.25
c) 0.20
d) 0.80
-my answer is A
If P (A or B) = 0.5, P(A) = 0.2 and P(B) = 0.7, determine P( A andB)
a) 0.10
b) 0.35
c)0.40
d) 0.90
-my answer is B

Plz check my answers

Determine (fg) (x) if f(x)= 5 - 2x and g(x) = 3x + 1.

In the space provided, type the coefficients of your final solution in  form.

(fg)(x) = ____ + ____x + ____