I will give you 10 points

Step-by-step explanation:

if those lines are parallel to each other

then 9 is equal to 11 so 11 is 112°

36 miles per hour (mph)

We have 12 miles traveled in 1/3 of an hour

Multiply both values by 3 so that the "1/3 hr" becomes "1 hr"

12*3 = 36

(1/3)*3 = 1

So you travel 36 miles in one hour, ie your speed is 36 miles per hour.

You can use this ratio to help

12 miles : 1/3 hr

3*(12 miles) : 3*(1/3) hr

36 miles : 1 hr