A salesperson earns commission on the sales that she makes each month. The salesperson earns a 5% commission on the first $5,000 she has in sales. The salesperson earns a 7. 5% commission on the amount of her sales that are greater than $5,000. ​ This month, the salesperson had $8,000 in sales. What amount of commission, in dollars, did she earn?​.

Recently, pfizer and allergan – the makers of viagra and botox, respectively – initiated a $160 billion merger. pharmaceutical companies tend to spend a greater percentage of sales on r& d activities than other industries. the government encourages these r& d activities by granting companies patents for drugs approved by the food and drug administration. for instance, allergan spent large sums of money developing its popular wrinkle-removing neurotoxin, botox, which is currently protected under a patent. botox sells for about $15 per vial.calculate the lerner index if the marginal cost of producing botox is $1.50 per vial.does the lerner index make sense in this situation? no, it is not possible to have a lerner index this high.yes, allergan has a patent-protected monopoly.no, a lerner index this high is not consistent with profit maximization