How much does it cost to run a blow drier for 15 hours in a week if the blow drier runs on 1100 watts and the electric company charges 9 cents per kilowatt hour?

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?

The sum of four times a number and three is two times the number minus twenty nine

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