The cost of a set of DVDs after a 25% markup can be represented by the expression c+0.25c . Simplify the expression.

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

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective