Can sb help me it’s not much Plz answer

Which of the fallowing best completes the sequence 5,10,15, a) 30 b) 22 c)25 d)35

Question 13 (1 point) jerome is starting a new job. his contract states he will earn $42,000 the first year, and will get a 4% raise per year. which function s(x) represents jerome's salary after a certain number of years, x?

Pls the last one and it has to be like number 6