Answer:
0.595
Step-by-step explanation:
We are given that An archer hits centre of the target
We have to calculate the probability that she will hit the centre of the target on two consecutive shots.
P(A)=P(B)=0.70
P(B/A)=0.85
We know tha formula

Substitute the value then we get

Hence, the probability that she will hit the centre of the target on two consecutive shots=0.595
So the pencils all together would be $6 so divide that by 3 and you get D as your answer each pencil costs $2
Answer:

Step-by-step explanation:
Given:

Solving for
:

I would so go with B I'm not sure if that's the correct answer though but that's what I would go with