PLS HELP ME 25 POINTS LOOK AT PIC. plzz

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.)

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

Find the actual dimensions of the box. the side length are in meters and integers. the surface area of the box is 104 m2 and volume of the box is 60 m3.