Amanda is 15 years old. she has two sisters, britney, who is 12 years old, and caitlin, who is the youngest. amanda's age is equal to 3 times the difference of britney's age and caitlin's age. how old is caitlin? a. 3 years old b. 5 years old c. 7 years old d. 12 years old

If Caitlin is...

A. 3 years old, the difference between her and Caitlin would be 9 years. That times 3 is 27. Not Amanda's age.

B. 12 - 5 = 7 (difference) 7 * 3 = 21 is not Amanda's age.

C. 12 - 7 = 5 5 * 3 = 15 = Amanda's age!

Correct answer is C

i think it's b

step-by-step explanation:

because the graph is 2 above (0,0)