A gravity retaining wall is shown below. Calculate the FS with respect to overturning, sliding and bearing

capacity. Wall dimensions: $H=2\mathrm{.}5m,x_1=0\mathrm{.}50m,x_2=1\mathrm{.}1m,x_3=1\mathrm{.}5m,x_4=0\mathrm{.}8m,x_5=0\mathrm{.}9m,x_6=0\mathrm{.}5m,D=0\mathrm{.}7m.$ Soil

properties: ${}_1=18k\frac{N}{m^3},1_1^{\text{'}}=28,{}_2=19k\frac{N}{m^3},{}_2^{\text{'}}=20,c_2=30k\frac{N}{m^2}$

Note: Use the Rankine active earth pressure in your calculations.