While visiting a​ memorial, a person approximated the angle of elevation to the top of the memorial to be 35º. After walking 255ft​ closer, he guessed that the angle of elevation had increased by 17º. Approximate the height of the​ memorial, to the top of the memorial.

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.