determine whether PQR and XYZ are congruent P(-7, -1), 2(4,9), R(-2,-5), X(-11, 4), Y(0, -6), Z (-1,3)

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.