Ayy bruvs this will be be a big help

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?

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

It takes an ant farm 3 days to consume 1/2 of an apple. at that rate, in how many days will the ant farm consume 3 apples