Question

The common ratio of the sequence is r the sequence is (42, 21, 10.5, 5.25, . . .)

Answer 1

2.625 is the answer just keep dividing by 2

Answer 2

Explanation:

r = 21/42 = 1/2 ( also 10.5 / 21 = 1/2)

This is a Geometric Sequence with first term 42 and common ratio 1/2.