Answer:
percentage of your salary save each year is 13.24%
Explanation:
given data
time period t = 25 year
amount = $1.1 million
salary = $61000
increase r1 = 4 percent per year = 0.04
return r2 = 10 percent = 0.1
to find out
what percentage of your salary must you save each year
solution
we consider here annual saving = A
so amount formula is
amount = A × 
here A is annual saving and r1 is increase rate and r2 is return rate
1100000 = A × 
A = $8079.45
so
proportion of salary is 
proportion of salary = 13.24%
so percentage of your salary save each year is 13.24%
Barry is engaging in an exchange as he he pays to attend an online webinar about pinterest strategy to improve his skills in social media.
<h3>What is an
exchange?</h3>
According to Armstrong (2009), he defined an exchange in marketing is the act of obtaining a desired object from someone by offering something in return.
This happens any time people trade goods or services. All exchange is supposed to produce "utility," which means the value of what you trade is less than the value of what you receive from the trade.
Therefore, he is engaging in an exchange as he he pays to attend an online webinar about pinterest strategy to improve his skills in social media.
Read more about exchange
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