Answer:
Part A = D
Part B = 5 and 50
Step-by-step explanation:
Part A:
area = 5*4x = 20x
so,
Part B:
to leave it only by x, you divide both sides by 20
100/20 = 5, 1000/20 = 50
which
x = 5/2,2
Answer: P(AB) = 3/8
You simply multiply P(AuB) by P(B)
3/7 * 7/8 = 3/8