Question 202203
I am sending you A) so you can get started. I will look at the others.
Good rule of thumb is 10% interest doubles in seven years, so you can tell your answer is way off.
a)A=P*(1+r/n)^rt
A=5000(1.10)^10
A=5000(2.59374)
A=$12,968.71
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b) A=8000(1+.08/1)^(1*7)
A=8000(1.08)^7
A=8000(1.713824269)
A=$13,710.59
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c) A=775(1+.12/1)^(1*12)
A=775(1.12)^12
A=775(3.895975993)
A=$3019.38
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d) A=21000(1+.05/1)^(1*5)
A=21000(1.05)^5
A=21000(1.276281563)
A=$26,801.19