Please help me solve the following question and show work. Thank you!

2. Given the vectors A = (4 N, -30) and B = (8 N, 70%): a) find the resultant force R = A+B by calculation. (Hint find first the R along x-axis, then R along y-axis). b) Find the balance or force in equilibrium. 8N 30 4N 70 B X c) Given the following vector A, B, and C, find the Resultant force R using graphical representation around an arbitrary point O. Use the polygon method