Can someone help me please With combined gas law problem please help me with #2 come on I’ll give you brainiest I really need your help and no links PLEASE:( show ALL THE WORK! I need all of it to understand it !

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

If the discriminant if a quadratic equation is 4 which statement describes the roots?

Percy rides his bike 11.2 miles in 1.4 hours at a constant rate. write an equation to represent the proportional relationship between the number of hours percy rides, x, and the distance in miles, y, that he travels.