Answer:
Yes
Step-by-step explanation: It's a ratio because you can frame it like "For every hour you _____ 30 miles."
Yes, it is a ratio of miles to hours. (30 miles per 1 hour) 30:1
Step-by-step explanation:
29 units
The length of a segment of a number line is the difference of the coordinates of the end points:
45 -16 = 29
1
1+0=1