We need a line to answer this question...
Answer:
-3x+6
Step-by-step explanation:
30% is .3 so 20 times .3 is 6 extra miles so 30 plus 6 is 36 miles
Answer:
x = 50
Step-by-step explanation:
10x + 300 = 800
subtract 300 from both sides
10x = 500
divide each side by 10
x = 50
Simple....
so you have:

There's the law where if the number outside your parentheses is negative along with the number in the parentheses; it converts into positive...
-->>x-(-x)
--->>x+(+x)
This being said.....

-->>

-->>>

But remember, you want to simplify it....

(Decimal form..1.25)
Thus, your answer.