John had 389 candies he gave his friend 51 of his candies and his best friend gave him 3/7 ×2/5 the amount he had WHAT IS THE ANSWER I HAVE TO GIVE THIS ANSWER IN NOW HEL

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 slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points