Arectangle has a length of 2x + 7 and a width of 3x + 8y. write and simplify an expression for the perimeter of that rectangle.

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.