[15 points] i don’t get the 2nd question !

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Find the circumference of a pizza with a diameter of 10 inches round to the nearest tenth

(! ) the figure below shows parallelograms abce, pqrs, and tnlm on a coordinate plane. points s, p, q, and r are midpoints of abce t, n, l, and m are midpoints of pqrs write the equation of line ml. show your work.