"Use the Pyhthagorean Theorem to find the missing side of the right triangle" Please help!

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1

Atest consists of 10 multiple choice questions, each with 5 possible answers, one of which is correct. to pass the test a student must get 60% or better on the test. if a student randomly guesses, what is the probability that the student will pass the test?