What us the mean of 15, 16, 13, 19, 9, 20, and 16?

Determine the area of a triangle with (see picture below)

An object is accelerating at a constant rate. its velocity in feet per second as a function of time in seconds can be modeled by the linear function v(t) = 2.5t. what does the dependent variable represent for this function? a) acceleration b) distance c) slope d) velocity

Which expression gives the distance between the two points 2 5 and 4 8