Question

missing number? 1,9,25,49,?

Answer 1

1,9,25,49. => 1square ,3square,5square,7square. Therefore the next number is 9square, and 9square=81. Therefore the answer is 81

Answer 2

Answer:

81

Step-by-step explanation:

9-1 = 8  (8x1=8)

25-9 = 16 (8x2=16)

49-25 = 24 (8x3=24)

x-49 = 32 (8x4=32)

x = 81

here you can see that difference is multiples of 8

hope this helps make my answer brainliest