I don't know the options but I guess it would be something like this:
40,000 < x < 50,000
Answer: 8.66666666667
Step-by-step explanation:
Answer:
B.
Step-by-step explanation: Because when you count them down to 3/5 It's more in the negative.
Actually,I believe it is the rule of 72
72/4.5 = 16 years