Perpendicular lines AB and CD intersect at point E. If m ZAED = x+ 20, what is the value of ? 160
110
90
70

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

Find the quotient. 50a2 – 98b2 -5a +7b

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?