Financial aid staff at a local university are studying issues affecting student debt. They noticed that students who own more credit cards tend to have larger combined debt balances. Which variable (number of credit cards owned or combined debt balance) is the explanatory (predictor) variable in this context?

Turtle corporation produces and sells a single product. data concerning that product appear below: per unit percent of sales selling price $ 150 100 % variable expenses 75 50 % contribution margin $ 75 50 % the company is currently selling 5,600 units per month. fixed expenses are $194,000 per month. the marketing manager believes that a $5,300 increase in the monthly advertising budget would result in a 190 unit increase in monthly sales. what should be the overall effect on the company's monthly net operating income of this change?