How much higher is -200 than 450m

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.