Price Price Index Year (USS per ounce) (Base = 2018) I2018 =? 2018 1328 2019 1294 Iz019 =? 2020 1562 I2020 =? 2021 1949 I2021 =? (a) Calculate all the simple price indexes by using 2018 as the base (h) from 2020 to 021

t (years since 2008) GDP (trillion dollars) 14.67 -14.81 0.25 0.5 0.75 14.84 14.55 14.38 (a) Estimate the relative growth rate (percent per year) at the first four times in the table. NOTE: Round your answers to one decimal place. Relative growth rate at 0 Relative growth rate at 0.25 % Relative growth rate at 0.5 Relative growth rate at 0.75 = (b) Economists often say an economy is in recession if the GDP decreases for two quarters in a row. Was the US in recession in 2008? because The US Choose one Choose one ▼

The Wall Street Journal’s website, www.wsj.com, reported the number of cars and light-duty trucks sold through October of 2014 and October of 2015. The top sixteen manufacturers are listed here. The sales information for all manufacturers can be accessed in a data file below.  Sales data are often reported in this way to compare current sales to last year’s sales.     Year-to-Date Sales   Manufacturer Through October 2015   Through October 2014   General Motors Corp. 2,562,840   2,434,707   Ford Motor Company 2,178,587   2,065,612   Toyota Motor Sales USA Inc. 2,071,446   1,975,368   Chrysler 1,814,268   1,687,313   American Honda Motor Co Inc. 1,320,217   1,281,777   Nissan North America Inc. 1,238,535   1,166,389   Hyundai Motor America 638,195   607,539   Kia Motors America Inc. 526,024   489,711   Subaru of America Inc. 480,331   418,497   Volkswagen of America Inc. 294,602   301,187   Mercedes-Benz 301,915   281,728   BMW of North America Inc.…

Disposable income, the amount left after taxes have been paid, is one measure of the health of the economy. Using U.S. Energy Information Administration data for selected years from 2015 and projected to 2040, the U.S. real disposable income per capita (in dollars) can be approximated by the equation I = 707.6t + 39,090 where t is the number of years after 2015. (a) What t-value corresponds to 2021? t = (b) Find the predicted U.S. per capita real disposable income (to the nearest $10) in 2021. $ (c) In what year is the U.S. per capita real disposable income expected to exceed $55,000? Extreme Protection, Inc. manufactures helmets for skiing and snowboarding. The fixed costs for one model of helmet are $6600 per month. Materials and labor for each helmet of this model are $55, and the company sells this helmet to dealers for $85 each. (Let x represent the number of helmets sold. Let C, R, and P be measured in dollars.) (a) For this helmet, write the function for monthly total costs…