An electronics company is looking to develop a regression model to predict the number of units sold for a special running watch. Data is provided below:
Sales (units) Price ($) Advertising ($) Holiday
500 100 50 Yes
480 120 40 Yes
485 110 45 No
510 103 55 Yes
490 108 40 No
488 109 30 No
496 106 45 Yes
1. Compile an excel spreadsheet for the above data and determine the regression equation.

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?