70 is the answer to your question
(Ignore Lol) hdhdjdhdh D. 27/4! (:
When the number of hours increases, the number of miles increases
Let the number be x.
x - 25 = -50
x = -50 + 25
x = -25
Hence, the number is -25.
The answer to question 1 is here, I don't understand question 2 so I can't answer it.