Which sequence is modeled by the graph below? points are (1,3) (2,0.6) (3, 0.12) a an = 3 (one fifth )^n − 1 b an = 3(−5)^n − 1 c an = 0.3(5)^n − 1 d an = one fifth (3)^n − 1

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 -

i think it’s a i believe