System of Equations by graphing
halp meh :D

What is the product? (x2+3y+7) [yy+1)

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

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