Evaluate the expression when m= -2 m^2 +9 m+ 3

Can someone help me understand how to solve these ?

im not positive but i think if im wrong then tell me

Step-by-step explanation:

Solution :

mn + m + n + 1

= m( n + 1 ) + 1( n + 1 )

= ( n + 1 )( m + 1 )

24

step-by-step explanation:

if it takes 8 pounds to make 12 divide 12 by 8 and you get 1.5, 1.5 x 16 = 24