In a sample, 39 students out of 150 are enrolled in an English course this semester. The probability that a randomly selected student is enrolled in an English course this semester is 1.)0.206
2.)0.26
3.)3.85
4.)0.30

This probability is obtained using
1.)Subjective probability
2.)Classical probability
3.)Empirical probability​

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm