(b) The sum of the first eight terms in an arithmetic sequence is 220 and the seventh term is 35. Determine the first term and the common difference of the term [8 marks] (c) The sum of the first n terms of a geometric sequence is 51. If its first term is one and its common ratio is two, deduce the value of n. [4 marks] (d) James repaid a personal loan by making his payments as the following: RM1,650, RM1,600, RM1,500, RM1,550, He makes each payment every two months for three years. Calculate the final enient and estimate the total amount he had to pay to settle the loan Op