Question

Find the 90th term of the arithmetic sequence,
8.9, 13.6, 18.3, 23, …

Answer 1

Answer:427.2

Explanation:

8.9 13.6 18.3

it goes up in 4.7

4.7n

8.9-4.7=4.2

4.7n+4.2

4.7(90)+4.2

423+4.2=427.2

Hopefully it is correct :)