hi i need to have a PERFECT SOLUTION by tomorrow for this...and i have NO idea how to do it...im really FREAKING out....please help me!!!

MO = 5cm

OP = (y+1)cm

OQ = (2y-2)cm

NO = 4cm

i) show that triangles MNO and QPO are similar.

ii) explain why (2y-2)/5=(y+1)/4

iii)solve the equation in (ii)