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f(-3)=2p*-3+q=-19. | f(4)=2p*4+q=9
-6p+q=-19. | 8p+q=9
-6p+q=-19
8p+q= 9
________-
-14p=-28
p=2
f(-3)=2*2*-3+q=-19
=-12+q=-19
q=-19-(-12)=-7
f(5)=2*2*5+(-7) | f(12)=2*2*12+(-7)
= 20+(-7) | =48+(-7)
=13. | =41
f(5)+f(12)=13+41=54 B