Which graph shows the solution set for -1.1x+6.4>-1.3? -10 -9 -8 -7 -6 -5 4 -3 -2 -1 0
O
-10 -9 -8 -7 -6 -5 4 -3 -2 -1 0
+ +
8 9 10
0
1
2 3 4 5
6 7
+++
0 1 2 3 4 5 6 7 8 9 10

the answer is a

step-by-step explanation:

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 -

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.