Find the product.

(x - 7)(y - 9)
xy - 7x - 9y + 63
xy - 9x - 7y + 63
-16xy
63xy

Lindsay used two points, (x, y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23

What is coefficient of the term of degree of degree 5 in the polynomial below