It takes 5 builders, 18 hours to build a wall.
How many minutes would it take 8 builders?​

In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.