Hello how are ou guys

Plzzz plzz maths ! quadratic sequences =an^2+bn 1) 1,6,15,28,45 2)5,18,39,68,105 3) 1,8,21,40,65 4) 7,24,51,88,135 5) -1,2,9,20,35

Can someone me and do the problem plz so i can understand it more better

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)