What is the probability that a stamp chosen at random is a commemorative or a special delivery stamp? definitive: 0.38 commemorative: 0.16 semipostal: 0.2 airmail: 0.08 special delivery: 0.18 a) 0.03 b) 0.18 c) 0.16 d) 0.34

Option 'D' is correct.

Step-by-step explanation:

Since we have given that

and

So, we need to find,

(∵they are independent events .)

So, option 'D' is correct.

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.