PLEASE URGENT On a coordinate plane, a line goes through (1, negative 1) and (4, 2). A point is at (2, 5).
What is the equation, in point-slope form, of the line that is perpendicular to the given line and passes through the point (2, 5)?

Which expression is equivalent to? assume x > 0 and y > 0.

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2