Marco Invests $760 into a savings account. The account pays 4% simple interest.
A. How much interest will he earn after 5 years?
B. If Marco makes no deposits or withdrawals to his account in 5 years. How much will be in that account in 5 years?

Step-by-step explanation:

The answer is 43,796

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

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times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3