Lost...any suggestions??

Question

A block of mass 8.00 kg is pushed up against a wall by a force P that makes a 50.0° angle with the horizontal. The coefficient of static friction between the block and the wall is 0.275. Determine the possible values for the magnitude of P that allow the block to remain stationary.
N (maximum)
N (minimum)

Answer 1

0 < Psin 50 < 0.275Pcos50 + mg
0 < P < 8*9.80662/(1 - 0.275ctn50)
0 ≤ P < 116.7 N