Which sequence is a geometric progression?
A 2 4 6 8
B 1 1 2 3
С 1 2 4 8
D 1 3 5 7

c) 1 2 4 8

Step-by-step explanation:

Explanation :-

Geometric sequence

The sequence is of the form a , a r , a r² , a r³ ,.......

'a' is the first term

'r' is the common ratio

1 , 1(2) , 1( 2)² , 1( 2 )³ ......  is a geometric sequence

here a = 1

common ratio  

The sequence 1 2 4 8 is a geometric sequence

50- 250 is correct i did that one too

step-by-step explanation:

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.