Fred's Quick Wheels has one bay dedicated to alignments. The garage normally is open only on weekdays from 7 a.m. to 6 p.m. and on Saturdays from 7 a.m. to noon. An alignment and balancing takes an average of 50 minutes to complete, although Fred charges customers for 2 hours according to a nationally published mechanic's labor-standard manual. During March, the height of pothole season, Fred's is open from 7 a.m. to 9 p.m. on weekdays and 7 a.m. to 5 p.m.on Saturday.
a) Caclulate Fred's Quick Wheels' capacity in alignments per week using their regular shop open hours.
b) Calculate Fred's capacity in alignments per week during the height of pothole season with their extended hours.