Answer:
8 years old
Step-by-step explanation:
oldest= 16
8+12+15+16= 51
51/4 = 12.73 ( average)
12
25%=1/4
of=*
3=1/4x
3 divided by 1/4 or 0.25 =12
Answer -> (12) I'm very late haha but hopes this helps!
-4
The number that is by itself is always the y-intercept
