Virginia stitches pants. She made 10 pairs on Monday, 12 on Tuesday, 9 on Wednesday, 11 on Thursday and 15 on Friday. She is paid $5.79 for each complete pair. How much did Virginia earn during this week?

Little’s law firm has just one lawyer. customers arrive randomly at an average rate of 6 per 8 hour workday. service times have a mean of 50 minutes and a standard deviation of 20 minutes. how long does a customer spend at little’s law firm on average?

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

If you are just building your payment history, how many points from a perfect score will you possibly miss?