Find resultant force when 3 people push a desk

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

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?