Timed math quiz
Please help me

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

Find x & pleeeeaaaassseeee me !

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online