A box contains 3 black pens, 7 blue pens, and 5 red pens. Without looking, what is the probability of choosing a red OR black pen? A)8/15

B)3/8

C)5/8

D)7/15

Ican interpret and represent the remainder in division calculations sensibly for the context (eg 27.4 in calculating average height in cm: $27.44 if it represents an amount of money) solve the following problems. 15) the wildlife park charges $25.50 dollars per person to enter their park if the park made $15096 dollars today, how many people entered the park? 16) ms adams plus 2,230 other keen runners ran a marathon: between them they ran 94817.5km. how many km did each competitor run?

Suppose that prices of a gallon of milk at various stores in one town have a mean of $3.71 with a standard deviation of $0.10. using chebyshev's theorem, what is the minimum percentage of stores that sell a gallon of milk for between $3.41 and $4.01? round your answer to one decimal place.

For the line segment whose endpoints are r(1, 2) and s(6, 7), find the y value for the point located 3 over 4 the distance from r to s. (6 points)