(m + 2)4 = (1)(m^)(20) + (4)(mº)(21) + (6)() + (4)(ml)(23) + (1)(mº)(24)
simplify each term to complete the expansion.

8 statues, with a bit of paint left over

Step-by-step explanation:

Divide the 8/9 liter of paint by the quantity of paint needed per statue, to obtain the number of statues Erin can paint:

 8/9 liter                    8      10

= * statues  =  80/9 statues.  

1/10 liter / statue        9      1

80/9 statues comes out to 8 8/9 statues.  8 statues can be painted, but Erin will either have to settle for partially painting one more statue or not using  up the last remaining bit of paint.