2(4a-3)+3(2+6a)=6, find a​

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

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

Which of the binomials below is a factor of this exression? 16x^2+40xy+25y^2 a.4x-5y b. 2x-5y c.4x+5y d.2x+5y