write and simplify a rational expression for the ratio of the perimeter of the figure to its area. identify the excluded values​

Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

Line cd passes through points c(1, 3) and d(4, –3). if the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b? –5 –2 1 5