Write out the correct proportion and solve to find 65% of 90.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

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Melissa is purchasing a $160,000 home and her bank is offering her a 30-year mortgage at a 4.9% interest rate. in order to lower her monthly payment, melissa will make a 20% down payment and will purchase 3 points. what will her monthly mortgage payment be? a. $645.98 b. $650.46 c. $662.93 d. $606.69