A researcher was interested in the mean wait time in South Carolina emergency rooms. 3 emergency rooms were randomly selected and all of the wait times were entered into the data set. This is an example of sampling.

Select one:
simple random
stratified
convenience
cluster

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

Find the solution of each of the following.