Answer:
The twins would be 13 years old.
Step-by-step explanation:
21+21+21+13+13 = 89
Answer: 4
Step-by-step explanation:
Hope this helps
Answer:
3.38
Step-by-step explanation:
x + y + z = 16.9
x = 2y
y = z
y=y
2y (x) + y(y) + y(z) = 16.0
5y = 16.9
y = 3.38
Four terms are used when grouping to factor.