i need help with the following question. please include a step by step explanation on how u got each answer.

http://imgur.com/IzaHF0R

Thank you for the opportunity to help you with your question!

The present value of the money is given by

Here f(t)=.07T+100

r=.05

T=10

(.07t^2/2)from 0 to 10 -5(e^(-.05)) from 0 to 10

=$789.46 (ans)

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