Question 1139548
{{{ A = A[0]*( 1 + r/n )^(n*t) }}}
{{{ A = 2000*( 1 + .04/2 )^(2*7) }}}
{{{ A = 2000*1.02^14 }}}
{{{ A = 2000*1.319478 }}}
{{{ A = 2638.96 }}}
{{{ I = 2638.96 - 2000 = 638.96 }}}
the balance is $2,638.96 
The interest is $638.96