Can someone answer this with steps

do answer if you do not have steps

In the proof of the triangle angle sum theorem, you must draw an auxiliary line. which construction must you use to draw this line?

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.