Its really urgent and its my assignment please solve fast​ and sorry its science question

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)

Which number line correctly shows 0.8 + 0.3?