I think it would be $14 per book
Answer:
10 degrees
Step-by-step explanation:
1.) every triangle has angles that add up to 180 degrees
2.) a right triangle has a right angle and two acute angles
3.) right=90 degrees; acute=<90 degrees
4.) 90+80=170
5.) 180-170=10
Definitely the ones (A). Since its measured in feet the tallest person should be around 6 feet which does not pass 10.
