Question 1113449
We know that {{{i=prt}}}. By algebraically manipulating, we are going to isolate r:

Apply division property of equality >> {{{i/pt=((prt)/pt)}}} then cancel out the variables and now we have derived our rate formula {{{ i/pt=r }}}

Given: i= 180.00
       p= 18,000
       r=?
       t=2
Substitute the values:
{{{ 180/(18000)(2)=r }}}


where r=0.005 or simply 0.5%