we know that
The formula of simple interest is equal to

In this problem
we have
I=$170
P=$8,500
r=4%=4/100=0.04
t=?
substitute given values in the formula

therefore
0.5 years=6 months
<h2>The answer is 6 months</h2>
200+40=240
each train cost 10
take 240/10=24trains
Answer:
b
Step-by-step explanation:
Answer:
60
hope this helps
have a good day :)
Step-by-step explanation:
Answer: A. and D.
Step-by-step explanation: Sorry if its wrong but that sounds right. The first week comes before the second week.