Austin was often late to work, despite his manager, Ben, warning him against it several times. As a last resort, Ben reduced Austin's salary in proportion to the hours he missed at work by being late. It turned out to be the right thing to do as Austin was never late to work after the incident. Which of the following best explains this scenario? a. positive reinforcement
b. negative reinforcement
c. instrumentality
d. valence

Emery pharmaceutical uses an unstable chemical compound that must be kept in an environment where both temperature and humidity can be controlled. emery uses 825 pounds per month of the chemical, estimates the holding cost to be 50% of the purchase price (because of spoilage), and estimates order costs to be $48 per order. the cost schedules of two suppliers are as follows: vendor 1 vendor 2 quantity price/lb quantity price/lb 1-499 $17 1-399 $17.10 500-999 $16.75 400-799 $16.85 1000+ $16.50 800-1199 $16.60 1200+ $16.25 (a) what is the economic order quantity for each supplier? (b) what quantity should be ordered and which supplier should be used? (c) the total cost for the most economic order sire is $