Question 27 Determine whether the sequence is arithmetic or geometric. Then identify the common difference or the common ratio.
11
99, 33, 11,
3
9.
А
Arithmetic; d = 3
B
Arithmetic; d =
- 3
o 0
C
Geometric; r =
- 3
1
D
Geometric; r =
3

26?

step-by-step explanation:

40% off the regular price is the correct answer.

step-by-step explanation:

the first one

step-by-step explanation:

just id the test.

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -