Step-by-step explanation:
Imagine a line segment on a coordinate plane that rotates around the origin like a clock hand. If it travels 45° (or any positive degree angle), it will travel in a counterclockwise direction. If it rotates -45° degrees (or any negative degree angle), it will travel in a clockwise direction.
-0.5,-0.4,-0.3,-0.1,0,1,2,3,4,4.17
The answer is B.55.8. Hope this helps!!
Answer: (30m-9n)/270
First we start with m/9-n/30.
We multiply the denominators to get 270.
Then we multiply the numerators by the original denominators to get (30m-9n).
To check, we can use m=2, and n=4
2/9-4/30=4/45
(30*2-9*4)/270=24/270=4/45
15 miles/2.5 mph=15/2.5=6 hours left
so 6 hours, 15 miles which is option D
