Answer: 72% X 261.27 = 188.11
sales price : $261.27 - $188.11 = $73.16
8.8 because you need to multiply 1.68 by 10 which is 16.8-8=8.8
Answer:
300 doors.
Step-by-step explanation:
1.5 minutes for 1 door.
7.5 hours for 300 doors.
7.5 hours = 450 minutes.

4 2/3 is equal to 4 8/12. 3 and 1/4 is equal to 3 3/12. 4 8/12- 3 3/12 = 1 5/12. 1 1/2 would be a better estimate.
Depends to what time (month, days, weeks) I'll assume annually which would be 150$ a year