Calculating credit card interest. Ryan Gray, a student at State College, has a balance of $380 on his retail charge card; if the store levies a finance charge of 21 percent per year, how much monthly interest will be added to his account?

One of the growers is excited by this advancement because now he can sell more crops, which he believes will increase revenue in this market. as an economics student, you can use elasticities to determine whether this change in price will lead to an increase or decrease in total revenue in this market. using the midpoint method, the price elasticity of demand for soybeans between the prices of $5 and $4 per bushel is , which means demand is between these two points. therefore, you would tell the grower that his claim is because total revenue will as a result of the technological advancement.