Question 143336
Let's do the first one. Then you can do then next 2 

{{{C = 3.8^2 / (0/943) }}}
Using logs
{{{LogC = Log((3.8^2)/(0.943)) }}}
{{{LogC = 2*Log(3.8) - Log(0.943) }}}
{{{LogC = 1.1596 -  (-0.0254) }}}
{{{LogC = 1.185}}}
{{{10^(LogC) = 10^(1.185) }}}
{{{C = 15.31}}}


2 and 3 are much the same

For the last problem, remember that anything raised to the 0 power is "1".
Given {{{A = sqrt((16.843)^0 * (18.8)^(1/3) )}}}
{{{A = sqrt(1 * (18.8)^(1/3) )}}}
{{{A = sqrt((18.8)^(1/3) )}}}
{{{A = (18.8)^(1/6) )}}}

Which looks like the same problems as above