Mr. and mrs. nelson are going to build a new home. they need to have working drawings of their house plans created by a design firm. they will choose between rock the house digital designs and elegant home architects. rock the house digital designs charges $500.00 for the initial consultation with the nelsons, plus $50.00 for every additional hour of work for the house plans. elegant home architects charge $75.00 per hour for the house plans. let ℎ represent the number of hours for which mr. and mrs. nelson hire the design firm. which of the following statements are true? select all that apply.

In which form is the following function written? y = - 2(x – 3)(x + 5)

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is

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.