There isn’t no question to answer
Answer:
This is the wrong subject. and please provide a passage.
Step-by-step explanation:
Answer: 6.93 years
Step-by-step explanation:
Given
Rate of interest is 
Future value is given by 
For the investment to double itself, i.e. 

It takes around 6.93 years to double the investment.
Answer:
$180
Step-by-step explanation:
To find the new cost, multiply the original cost by 1.2
150(1.2)
= 180
So, the new cost of the bicycle is $180
The only option that fits is E, because:
f(10)=4×10+10=50