In a right triangle, the sum of the leg lengths is equal to the square of the hypotenuse length which theorm is this

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?

Calculate the annual effective interest rate of a 12 % nominal annual interest rate compound monthly

Find the value of x. also give me an explanation so i can complete it to other questions as well, : )