Tall Guys Clothing has a 30-day collection period. Sales for the next calendar year are estimated at $1,950, $2,100, $2,650 and $3,200, respectively, by quarter, starting with the first quarter of the year. Assume a year has 360 days. How much will be collected during the 4th quarter?

The goal of an economist who formulates new theories is to a. provide an interesting framework of analysis, whether or not the framework turns out to be of much use in understanding how the world works. b. provoke stimulating debate in scientific journals. c. contribute to an understanding of how the world works. d. demonstrate that economists, like other scientists, can formulate testable theories.