g(6) = 5b - 9
h(b) = (b − 1)2
                                             
                                          
                                          
                                        
											 
											Answer:
1600
Step-by-step explanation:
(h ° g)(-6) =((5b -9)-1)²
=(5b-10)²
=(5(-6)-10)²
=(-30-10)²
=(-40)²
=1600