Ihave to solve the problem y= x -7 and 2x+y=8 using substitution. i'm not sure how

In approximately 200 words, summarize the main points of jackson kuhl's "innovations that changed building design."

The voice of a verb refers to active or passive. true or false

Take a look at this dictionary entry. contest con • test (n.) kon-test [from anglo-french or latin] 1. a competition between rivals for a prize 2. a struggle for victory 3. a dispute; controversy (v.) kuhn-test 4. to fight for in a battle 5. to call into question