What is the simplified form of x + 4 / 5 + x + 5 / 5

Using d, e, and f as values on a triangle and d being 60 degrees, what is the value of e and f if d is 60 degrees? also, what do you notice about the values of e and f?

Normal yağmur ile asit yağmuru arasındaki fark nedir

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left