Answer:
58%
Step-by-step explanation:
This is a problem of conditional probability.
Let A represent the event that student has dark hair.
So P(A) = 55% = 0.55
Let B represents the event that student has blue eyes.
So, P(B) = 60% = 0.60
Probability that student has blue eyes and dark hairs = P(A and B) = 35% = 0.35
We are to find the probability that a randomly selected student will have dark hair, given that the student has blue eyes. Using the given formula and values, we get:

Therefore, there is 0.58 or 58% probability that the student will have dark hairs, given that the student has blue eyes.
Answer:
Percent markdown = 14%
Step-by-step explanation:
Given:
Original price of DVD player = $175.90
Markdown price of DVD player =$153.77
To find percent markdown.
Amount of mark down 
Percent markdown 
Answer:
Step-by-step explanation:
let h be the number of hours.
7.60 h≥ 500
76h≥5000
Answer:
A
Step-by-step explanation:
perimeter of the base...