Ineed the answers to these questions people on here?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625

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?