Answer:
40 mph or 40 miles per hour
Step-by-step explanation:
If there is 240 miles in 6 hours, so you can divide the 240 by 6 to get the unit rate of miles per hour.
240 divided by 6 is 40
6m-3m^2. You can only add,subtract, multiply, and divide the same variables. The only same variables are 2m and 4m so you add them, that's how you get 6m. -3m^2 is a different variable so you leave it alone. <span />
A Ratio compares two numbers by division.