Ron walks 0.5 mile on the track in 10 minutes. stevie walks 0.25 mile on the track in 6 minutes. find the unit for each walker in miles per hour. who is the faster walker?

Ron walks 0.5 mile on the track in 10 minutes.
Unit rate = 0.5 miles per 10 minutes
Solve:
=> 0.5 miles / 10 minutes = 0.05 miles per minute
Stevie walks 0.25 mile on the track in 6 minutes.
Unit rate = 0.25 miles for 6 minutes
Solve
=> 0.25 miles / 6 minutes = 0.042 miles per minutes
Who walks faster than the 2 of them?
=> 0.05 miles / m  is greater than 0.042 miles per minute
Thus, Ron walks faster than Stevie

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle