Question 950252
x=Joey's age; m=martina's age=x+12
The only question asked is to express Martina's current age in terms of Joey's so
ANSWER:m=x+12 years 
TRY TO FIND MARTINA'S AND JOEY'S AGES 
The following included to just check your work if you decide to go on.
m+4=3(x+4)
m+4=3x+12 Substitute for m
x+12+4=3x+12
x+16=3x+12 Subtract x+12 from each side.
4=2x Divide each side by 2.
2=x Joey is 2 years old
m=x+12 years=2 years+12 years=14 years Martina is 14 years old.
CHECK
m+4 years=3(x+4 years)
14 years+4 years=3(2 years+4years)
18 years=3(6 years)
18 years=18 years