The functions of money are a. medium of exchange, the ability to buy goods and services, and checking accounts. b. medium of exchange, the ability to buy goods and services, and the ability to pay off debts. c. medium of exchange, unit of account, and store of value. d. store of value, use as a barter mechanism, and unit of account. e. credit cards, checking accounts, currency, and coins.

Consumer surplus is: the difference between the price of a product and what consumers were willing to pay for the product. the difference between the discounted price of a product and its retail price. the difference between the price paid by consumers and the price required of producers. the difference between the price of a product and consumers' valuation of the last unit of the product purchased.

Aquatic marine stores company manufactures special metallic materials and decorative fittings for luxury yachts that require highly skilled labor. aquatic uses standard costs to prepare its flexible budget. for the first quarter of the year, direct materials and direct labor standards for one of their popular products were as follows: direct materials: 3 pounds per unit; $ 6 per pound direct labor: 4 hours per unit; $ 19 per hour during the first quarter, aquatic produced 5 comma 000 units of this product. actual direct materials and direct labor costs were $ 65 comma 000 and $ 330 comma 000, respectively. for the purpose of preparing the flexible budget, calculate the total standard direct materials cost at a production volume of 5 comma 000 units.

Describe three scenarios in which you might utilize mathematics to investigate a crime scene, accident scene, or to make decisions involving police practice. be sure to explain how math is used in police as they work through each scenario.