Which transformation gives the same result as a reflection over the x axis followed by a reflection over the y axis

What is this inequality notation? t is less then or equal to 2

The probability that a student graduating from suburban state university has student loans to pay off after graduation is .60. if two students are randomly selected from this university, what is the probability that neither of them has student loans to pay off after graduation?

Corresponding angles are a. always b. sometimes c. never congruent