If nine of every 11 trick-or-treaters that came to your house last Halloween were dressed as pirates what proportion of trick-or-treaters were not dressed as pirates

Aright triangle has an area of 18 square inches. b: if the triangle is not an isosceles triangle, what are all the possible lengths of the legs, if the lengths are whole numbers. answer !

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)