please help with part b, part a is correct already

Next Question Knott's Industries manufactures standard and super premium backyard swing se bur identical swing-set-making machines, which are operated 250 days per year and 8 hours each day. A capacity cushion of 20 percent is desired. The following information is also known Standard Model Super Premium Model Annual Demand 20.000 10,000 Standard Processing Time 5 min 17 min Average Lot Size 45 25 Standard Setup Time per Lot 30 min 45 min a. Does Knott's have sufficient capacity to meet annunt demand? Knott's does have sufficient capacity to meet annual demand because 4 machines are needed (Enter your response rounded up to the next whole number.) b. If Knott's was able to reduce the setup time for the Super Premium Model from 45 minutes to 30 minutos, would there be enough current capacity to produce 20,000 units of each type of swing set? w Knott's was able to reduce the setup time for the Super Premium Model from 45 minutes to 30 minutes, the there be enough capacity to produce 20,000 units of each type of swing set because machines are needed. (Enter your response rounded up to the next whole number.)