Jackson earns nine dollars per hour walking dogs right in equation to find Jackson’s earnings M for any number of hours h

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?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

What is sin 7x/4 ? i need on this urgent trig