Lincoln estimates the height of a tree. Lincoln's estimate has a 6% error. The actual height of the tree is 17 feet. What could be Lincoln's estimate?
Choose all the correct answers.
A 11
B 15.98
C 18.02
D 16.94
E 23

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.