Given the quadratic sequence: 2;3; 10 ; 23 ;... 2.1.1 Write down the next term of the sequence. 2.1.2 Determine the n'h term of the sequence. 2.1.3 Calculate the 20th term of the sequence. Given the arithmetic sequence: 35; 28; 21 ;... Calculate which term of the sequence will have a value of -140.