Respuesta :

kittyhumanlover

Answer:

a) 73, 82, 91

b) arithmetic

Step-by-step explanation:

a) We add 9 after each term, making the common difference 9.

As such, 64 + 9 = 73

73 + 9 = 82

82 + 9 = 91

b) This sequence is arithmetic because it has a common difference, if it had a common ratio, it would be geometric.