Please help my physics question?

Refer to the figures below.

(a)
Total force pointing to +y = Total force pointing to -y
p sin35° = 200
p = 200/sin35° = 349 N

Total force point to +x = Total force pointing to -x
p cos35° = n
n = (200/sin35°) × cos35°
n = 286 N

The answers:
n = 286 N
p = 349 N

(b)
Total force pointing to +x = Total force pointing to -x
p = n cos35° + 200 sin35° …… [1]

Total force pointing to +y = Total force pointing to -y
n sin35° = 200 cos35°
n = 200 cos35°/sin35°
n = 200/tan35°
n = 286 N

Plug n = 200/tan35° into [1]:
p = 200 cos35°/tan35° + 200 sin35
p = 349 N

(c)
• Yes