Net Sales $$175,0$

Net Income $35,000$

Cash provided by Operating Activities $40,000$

Expenditures on Property, Plant and Equipment $15,000$

Current Assets $47,250$

Current Liabilities $27,000$

Total Assets $135,000$

Total Liabilities $94,500$

Using the above data, calculate the following $(1)$ return on sales ratio, $(2)$ current ratio, $(3)$ debt$-$to$-$total$-$assets ratio, and $(4)$ free cash flow. $$