An actor invested some money at 5% simple interest, and $21 comma 000 more than three times the amount at 6 %. the total annual interest earned from the investment was $29 comma 550. how much did he invest at each amount?

Suppose a ceiling fan manufacturer has the total cost function c(x) = 48x + 1485 and the total revenue function r(x) = 75x. (a) what is the equation of the profit function p(x) for this commodity? p(x) = (b) what is the profit on 35 units? p(35) = interpret your result. the total costs are less than the revenue. the total costs are more than the revenue. the total costs are exactly the same as the revenue. (c) how many fans must be sold to avoid losing money? fans

Comprehensive illustrative problem: mira's store on february 1 20a4 mica delaman opened astore that sells school supplies her main customer are the students and teachers of happy students school that is situated in front of her store. mira wanted to know the financial position of mira's store. mira knew you were studying accounting. so she asked for . 1. to start her business mira's opened a checking account in the name of mira's store . the statement of account from the bank shows that the checking account has a balance of 31,535 of december 31,20a4

Employees at a library check out books to patrons. books have an isbn and a name. the library sometimes has multiple copies of the same book. books have one or more authors. a patron is an individual who has an active (non-expired) library card. for each library card, we store the person's first and last names and their address. for each employee, we store their employee id, current salary, first and last name and their address. we also store the employee id of their current manager. each time we check out a book to a patron we need to store the date of the transaction, the employee who checked out the book to the patron, and the library card of the patron. some employees have library cards. if an employee patron turns in a book late, the fine that they pay is a percentage of their salary. some employees are authors who have library cards—they are allowed to check out as many books as they like.