What is the answer to this equation because I don't know it​

Abcd is a parallelogram find the valuse of x

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?

Ze trinomial x2 + bx – c has factors of (x + m)(x – n), where m, n, and b are positive. what is ze relationship between the values of m and n? explain how you got ze answer