answer it all pls, this is the last post question i got

In a distillation column, it is desired to sem product containing of a mixture of 40%(mol%) nhexane and 60%n-heptane into a top product containing 95%n-hexane and a bottom product containing 90% n-heptane What is the mass flow rate of the bottom product? A. 10,600fbm/hr B. 14.400lbmhr C. 12.800ibmhr D. 15,900lbm/hr What is the mass flow rate of the top product? A. 1700bm/hr B. 6100lbm/hr C. 3500ibm/hr D. 8400lbm/hr If a reflux ratio of 2:1 is used, what is the flow rate of the reflux stream? A. 120lbmole/hr B. 290 lomole/hr C. 140lbmoleihr D. 330 ibmole/hr What is the slope of the operating line for the rectifying section? A. 0.67 B. 0.85 C. 0.76 D. 0.98 What is the y-intercept of the operating line for the rectifying section? A. 0.32 B. 0.58 C 0.46 D. 0.65