The local baseball team is selling discount books as a fundraiser. Their revenue equation has been determined to be LaTeX: y=-.05x^2+5xy = − .05 x 2 + 5 x Their expense equation is determined to be LaTeX: y=\frac{1}{2}x+50y = 1 2 x + 50. Where x is the number of books sold and y is the amount of money made. The two functions intersect at a point. What does this point represent?

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %