Question 1062458
{{{ A = P*( 1 + r )^2 }}}
{{{ 5356.13 = 5000*( 1 + r )^2 }}}
{{{ 1.07123 = ( 1 + r )^2 }}}
Take the square root of both sides
{{{ 1.035 = 1 + r }}}
{{{ r = .035 }}}
This is the rate as a decimal. 
The rate as a percent is:
{{{ .035*100 = 3.5 }}}
3.5%
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check:
{{{ A = P*( 1 + r )^2 }}}
{{{ 5356.13 = 5000*( 1 + .035 )^2 }}}
{{{ 1.07123 = 1.035^2 }}}
{{{ 1.07123 = 1.07123 }}} 
OK