1. 112 degrees
2. 68 degrees
https://www.khanacademy.org/math/precalculus/prob-comb/combinatorics-precalc/v/permutation-formula
I would watch a bunch of videos or ask a teacher or something for help
1,2,3,5,6,9,10,1518,30,45,90
Answer:
x squared - 2x x 4 + 4 squared
Step-by-step explanation:
