Question 526413
{{{  A = P*(1 + r)^t }}}
given:
{{{ A = 175 }}}
{{{ P = 150 }}}
{{{ t = 2 }}}
{{{  175 = 150*(1 + r)^2 }}}
{{{ (1 + r)^2 = 175 / 150 }}}
{{{ (1 + r)^2 = 7/6 }}}
Take the square root of both sides
{{{ 1 + r = 1.08 }}}
{{{ r = .08 }}}
The interest rate is 8%