Mr. heng must maintain a minimum daily balance of $500 in his checking account to avoid a monthly service fee. write an inequality to represent the possible balances b in mr. heng's account for which there is no monthly service fee.

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .