Which sequences are geometric? select three options. –2. 7, –9, –30, –100,. –1, 2. 5, –6. 25, 15. 625,. 9. 1, 9. 2, 9. 3, 9. 4,. 8, 0. 8, 0. 08, 0. 008,. 4, –4, –12, –20,