GROCERY STORE PROBLEM: A local retailer of pet food faces demand for one of its items at a constant rate of 25,000 bags per year. It costs them $10 to process an order and $2 per bag per year to carry the item in stock.  The stock is received three working days after an order is placed.  Assume 300 working days in a year and no backordering. What is the optimal order quantity (EOQ)?

The average annual salary for all U.S. teachers is $47,750 with a standard deviation is $5680. If the salaries are normally distributed, what is the probability that a randomly selected teacher earns less than between $40,000 and $50,000?

Convert to base seven.

Let U = {a, b, c, d, e, f, g, h, i, j, k, l}, A = {b, d, f, h}, B = {f, h, j, k}, and C = {b, j, l}. Find the following:  

Use a Euler diagram to determine whether the syllogism is valid or invalid:   Some caterpillars are furry. All furry things are mammals. ________________________________ Some caterpillars are mammals

How many different ways can a teacher select 2 textbooks from a selection of 17 books?

Write an equation, in slope-intercept form, through the point

Write the converse, inverse, and contrapositive of the statement: If I make dinner, I will not go out to eat. Please label each statement.

Jaimie run a copying service from home. They paid $3500 for a copier and a lifetime service contract. Each sheet of paper used costs $0.01, and the service charges $0.05 per copy made. Let x represent the number of copies made. Express the cost C as a function of x. Express the revenue R as a function of x. Determine the value of x for which this business breaks even.  

List the proper subsets of the set: {a, b, c}