The mean of the values in a data set is r. if each of tje values in the data set were multilied by 13.5, what would be the mean of the resulting data?

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Me because some of question i don’t understand

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.