Let S = {3, 7, 15} be a sample space associated with an experiment. (a) List all events of this experiment.
{3}, {7}, {15}, {3, 7}, {3, 15}, {7, 15}, {3, 7, 15}
∅, {3}, {7}, {15}, {3, 7}, {3, 15}, {7, 15}, {3, 7, 15}
{3}, {7}, {15}, {3, 7}, {3, 15}, {7, 15}
∅, {3, 7}, {3, 15}, {7, 15}, {3, 7, 15}
∅, {3}, {7}, {15}, {3, 7}, {3, 15}, {7, 15}
{3, 7}, {3, 15}, {7, 15}, {3, 7, 15}

(b) How many subsets of S contain the number 15?
subsets

(c) How many subsets of S contain either the number 7 or the number 15?
subsets

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?

How many grams the dog will eat in 3 days?

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp