Sasha is 12 years old her sister Emma is why years younger than Sasha which expression could be used to find Emma's age, in years?

Question

Show your work.

A. 12+y

B. 12-y

C. y-12

D. y+12

Answer 1

B. 12-y

Emma is younger than Sasha, so her age would be subtracted from Sasha's age.