3. alaskas tundra is a wet marsh in the summer-its hard to walk through and slowed them down. it took 1 week to hike the 45.5 miles over the brooks range. what was the average number of miles per day they travelled.
4. it took 2 weeks for them to canoe 110 mikes down the river. they sometimes took days off to hike or rest. what was the average number of miles they paddled per day. round to the nearest tenth.

3. 45.5/7=6.5 miles/day
4. Varies based on how many days they rested.

3. If it took 1 week, which is 7 days, to hike 45.5 miles, then do 45.5/7 to find out how many miles they traveled per day. They traveled 6.5 miles per day. 

4. 2 weeks is 14 days. Do 110/14 to figure out the average number of miles they paddled per day. 110/14 is 7.9 miles rounded to the nearest tenth.

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