3prime numbers that add up to 30

How do you use the elimination method for this question? explain, because i really want to understand!

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min. if they did not stop driving, how many miles could kyle and elijah drove in a whole day? ? 1 day = 24 hours. plzzz write a proportion i will give you 100 points

Find the solution on the interval [0, 2pi)