What is the unit rate per bottle if a pack of 28 bottles of juice sells for $7? $0.25 per bottle $0.75 per bottle $2.50 per bottle $4.00 per bottle

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