Answer:
I haven done that in a hot minute. jeezzz
Step-by-step explanation:
The answer is C,

We use the 'more than or equal sign' as the consultant needs to make at least $600 - so exactly $600 or more than $600
(7x)-6=-12 7 times a number is 7x or 7 times any variable. Six less than that is subtracting by 6 then it all equals -12
Answer
27 - R = C
if she rented 16 of them then
27 - 16 = C And C = 11