please help i am so confused! need answer fast and thank you soo much! get full points and help your girl out!

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

Write the expression in simplified radical form. show all steps and work including any foil method work. (hint: use the conjugate. no decimal answers.) (9-2√3)/(12+√3)

100 points, hi, i’m not sure how to get the equation from the graph and table.