Different ways of communicating with others

The distance d that a car can travel in a certain amount of time t can be found by multiplying the rate of speed r by the travel time. if a car has already travel 4 miles, the formula for the total distance travel is d= rt + 4. which of the following gives the value of r, in terms of d and t?

2. your driving record a. is totally confidential. b. may be available to the public. c. is available only to your employer with your authorization.

Explain how earth is like a giant bar magnet. how is our magnetic field made?