2-63. Use your unit of measure to make a rectangle that has dimensions units by units.

What is the area of your rectangle? (That is, how many unit squares are there in your rectangle?)

When you answered part (a), did you count the squares? Did your team use a shortcut? If so, why does the shortcut work?

Compare your rectangle to rectangles that other teams made. What is the same about the rectangles and what is different?

Let us imagine that the number of automobile accidents in a certain region are related to the regional number of registered automobiles in tens of thousands (b1), alcoholic beverage sales in $10,000 (b2), and decrease in the price of gasoline in cents (b3). furthermore, imagine that the regression formula has been calculated as: y = a + b1x1 + b2x2 + b3x3 where y = the number of automobile accidents, a = 7.5, b1 = 3.5, b2 = 4.5, and b3 = 2.5 calculate the expected number of automobile accidents for a football weekend if the region has 25,000 registered vehicles, $75,000 worth of beer is sold, and a gas war causes a 10 cent drop in a gallon of gas.