Answer:
54
Step-by-step explanation:
6(6)+3(9)-9
=54
earns 2 points for each correct answer
loses 0.5 points for each incorrect answer
13 correct answers
2 incorrect answers
13 (2)-2(0.5) = 26-1 = 25
Score = 25 points
Surface area = 2(12*12+15*12+15*12) = 1008
1008 * 4 = 4032
5k^2–7k-4 it says I have to write 20 characters so here
