Find slope of line graphed

a. 1/2

b. 1

c. 2

d. 4

ratio is 2 : 9

the answer is three

13.5 : 3

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

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 -

i don't know

step-by-step explanation: