Márcia e Rodrigo decidiram juntar seus selos e iniciar uma coleção em dupla. juntos eles tem 1200 selos. Márcia tinha 300 selos a mais que Rodrigo. com quantos selos Rodrigo contribuiu para iniciar a coleção ​

The equation of line wx is y=2x-5. write an equation of a line perpendicular to line wx in slopeintercept form the contains points (-1,-2)

Is (0,0) a to ? ys x2 - 4 y> 2x-1

4. jake needs to score in the top 10% in order to earn a physical fitness certificate. the class mean is 78 and the standard deviation is 5.5. what raw score does he need? z value for top 10% =1.282 how do i get the z value? what is the equation for this? raw score =mean+z*sd = 78+1.282*5.5 = 85.051