Jack's big shop had a huge back to college special for $1000 you get even desk chairs, five tables and two laptops. write an equation to determine the number of items jack's big shop sells

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?

Lv beethoven software supplies customized software to a managed healthcare system. lv beethoven software's costs for the software is $1,723,000. lv beethoven software sells the software to the healthcare system for $3,816,981.10. overhead expenses are estimated at 47% of the selling price. what is lv beethoven software's net profit to the nearest dollar?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?