Question

write the first three terms of each of the arithmetic sequences described below: 1) first term 30; the sum of the first three terms is 300. 2) first term 30; the sum of the first four terms is 300. 3) first term 30; the sum of the first five terms is.4) first term 30; the sum of the first six terms?​

Answer 1

Answer:

(1) 30, 100, 170

(2) 30, 60, 90

refer to the attachment