so by puting the values in the formula,
XXXX= 22/X * h * h* h ( XX h=r)
&XX; 1078*(X/XX) = h*h*h
> h^3 = XXX
&XX; h=7
so the XXXXX XX XXX oil tank XX XXX.
b)here,
length=10m
XXXXXXX=XX
perimeter XX XXX rectangle XX = X*(XXXXXX + XXXXXXX)
so, XXXXXXXXX=X*(10+5)= X*XX=30m
4)
so, x= 44/XX