Terrance and jesse are training for a long-distance race. terrance trains at a rate of 6 miles every half hour, and jesse trains at a rate of 2 miles every 15 minutes

1. what is the unit rate in miles per hour for each runner?

2. how long will each person take to run a total of 50 miles at the given rates?

3. sandra runs at a rate of 8 miles in 45 minutes. how does her unit rate compare to terrance's and to jesse's?

I set up fractions based on quarter hours. I hope this helps.

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