Answer:
B
Step-by-step explanation:
It's just B
17. The variable "a" represents the age of the child
18. The variable "A" represents the adult dosage
19. The prescribed dosage of the medicine for the 6-year-old child is 60 milligrams.
Work: C=6/(6+12)·180
C=6/(18)·180
C=60
6 + 2(x)2
6 + 2(3)2
=6 + 6(2)
=6 + 12
=18
The equation is -5x = 4
x = -0.8