Question 1037768
The area of a square in terms of its side, {{{S}}}, is,
{{{A=S^2}}}
The perimeter of a square is,
{{{P=4S}}} so the total cost would be,
{{{C=15P}}}
{{{C=15(4S)}}}
{{{C=60S}}}
Substituting,
{{{C=60*sqrt(A)}}}
{{{C=60*sqrt(2025)}}}
{{{C=60*45}}}
{{{C=2700}}}