Using the order of operations, what should be done first to evaluate 6+(-5-7) -8(3) over 2

Complete each sentence with the correct form of the verb ser or estar to say where the following people are from or where they are right now claudia y maria en méxico

Match the one-to-one functions with the graphs of their inverse functions.

What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?