1) John receives a total of $1282 a year from two investments. He has invested 4000 in one account and $8200 in another acount that pays 1.5% more than the first account. What is the interest rate for each account?

2) Grace needs to get a loan for a house that she is going to purchase. She discovers that she must get two loans instead of one large loan. She borrows $30,000 from one institution and $48,000 from another institution whose lending rate is 2% more than the other. If her total monthly interest charge on the loans is $600, what interest rate does she pay on each loan?

3) Rebecca invests money in two accounts. One bank pays 8.5% on her investment of $1200 while ther other pays 9% on her investment of $2000. How long is the term of investment if the total interest is $70.50?

Thanks for the help.