Easy pls will give if -11 + n = -11, then n is the

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

Which of the following equations is equivalent to x/3-6/x=1

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect