Please help me! ill give a brainlest for who answer this

How many sides does a regular polygon have if each exterior angle measures 72a.3b.4c.5d.6

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

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?