Answer:
12
Step-by-step explanation:
Answer:

Step-by-step explanation:
2/3 = 0.6 repeating
3/7 = 0.42857
Answer:
Age= 15
Step-by-step explanation:
Let a be for age at the moment
(a-3)^2 =6(a+9)
a^2-6a+9=6a+54
a^2-12a-45
(a-15)(a+3)
a=15 or a=-3
Age cannot be negative (-)
Therefore
Age =15