Ellen made 900 cupcakes for a fundraiser. She can make 50 cupcakes in an hour. She works on the cupcakes for 6 hours a day. How many days did she work on the cupcakes?

Which best explains why this triangle is or is not a right triangle ?

The power generated by an electrical circuit (in watts) as a function of its current c (in amperes) is modeled by p(c)= -15c(c-8) what current will produce the maximum power?

Two cities a and b are 1400km apart and lie on the same n-s line. the latitude of city a is 23 degrees. what is the latitude of city b. the radius of the earth is approximately 6400km.