conversions?

Question

i cant do this! i normally am outstanding in math but i cant do this! Pls show how you got your answer
if possible can you show it in a tea chart

the concentration of a carbon monoxide in an urban apartment is 48 ug/m^3. What mass of carbon monoxide in grams is present in a room measureing 9x14.5x18.8 ft?

Answer 1

(48 μg/m^3)(9 ft)(14.5 ft)(18.8 ft)(0.028317 m^3/ft^3)(10^-6 g/μg) = 0.00333 g or 3.33 mg

Answer 2

48*10^-6*9*14.5*18.8*(.3)^3
is the answer