A circular lawn has a row of bricks around the edge. The diameter of the lawn is about 40 feet. Which is the best estimate for the amount of grass in the lawn?

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

If two lines form congruent alternate interior angles with a transversal, then the lines