Answer:
Ashley and her 4 friends would required 5.33 hours to repair 1575 bags of sample.
Explanation:
75% is written as 0.75 as a decimal or 3/4 as a fraction.
Her friends take 75% longer, so multiply the time it takes Ashley by 1 + the percentage: 1.75 as a decimal or
as a fraction.
.
1 hour = 60 minutes.
Divide minutes in an hour by minutes per pack:
Ashley can pack:

1 friend can pack:

multiply the amount 1 friend can pack by 4 friends:

Ashley and her friends can pack

Now divide the total bags by bags per hour:
( Round answer as needed.)
Hence, Ashley and her 4 friends would required 5.33 hours to repair 1575 bags of sample.