City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was −3° c. what was the temperature of city a and city b on that day?
city a was 5° c, and city b was 4° c.
city a was 3° c, and city b was −1° c.
city a was 8° c, and city b was −3° c.
city a was 5° c, and city b was −5° c.

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.