Tony misplaced 777 stamps from his collection. he knows that each stamp of his is worth $0.15, and that the total value of them is now only $5.55. how many stamps did he originally have? * include equation*

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