Beth has 250 comic books in her collection. She begins to sell 20 comics each week. Martin has 80 comic books and buys 15 comics each week. Write and solve an inequality to determine in how many weeks until Martin has more comics than Beth.

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 statement about perfect cubes is true

When a rectangle is dilated, how do the perimeter and area of the rectangle change?