Who wrote down the equation for the law of gravitation?

For each expression use a property to write an equivalent expression.

Derricks dog sitting and darlene's dog sitting are competing for new business. the companies ran the ads shown.which dog sitting service is more economic to use if you need 5 hours of service? explain.

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?